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The impact of emotional well-being on long-term recovery and survival in physical illness: A meta-analysis



This meta-analysis synthesized studies on emotional well-being as predictor of the prognosis of physical illness, while in addition evaluating the impact of putative moderators, namely constructs of well-being, health-related outcome, year of publication, follow-up time and methodological quality of the included studies. The search in reference lists and electronic databases (Medline and PsycInfo) identified 17 eligible studies examining the impact of general well-being, positive affect and life satisfaction on recovery and survival in physically ill patients. Meta-analytically combining these studies revealed a Likelihood Ratio of 1.14, indicating a small but significant effect. Higher levels of emotional well-being are beneficial for recovery and survival in physically ill patients. The findings show that emotional well-being predicts long-term prognosis of physical illness. This suggests that enhancement of emotional well-being may improve the prognosis of physical illness, which should be investigated by future research.
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Journal of Behavioral Medicine
ISSN 0160-7715
Volume 35
Number 5
J Behav Med (2012) 35:538-547
DOI 10.1007/s10865-011-9379-8
The impact of emotional well-being on
long-term recovery and survival in physical
illness: a meta-analysis
Sanne M.A.Lamers, Linda Bolier,
Gerben J.Westerhof, Filip Smit & Ernst
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The impact of emotional well-being on long-term recovery
and survival in physical illness: a meta-analysis
Sanne M. A. Lamers Linda Bolier Gerben J. Westerhof
Filip Smit Ernst T. Bohlmeijer
Received: December 17, 2010 / Accepted: September 2, 2011 / Published online: September 15, 2011
ÓThe Author(s) 2011. This article is published with open access at
Abstract This meta-analysis synthesized studies on emo-
tional well-being as predictor of the prognosis of physical
illness, while in addition evaluating the impact of putative
moderators, namely constructs of well-being, health-related
outcome, year of publication, follow-up time and methodo-
logical quality of the included studies. The search in refer-
ence lists and electronic databases (Medline and PsycInfo)
identified 17 eligible studies examining the impact of general
well-being, positive affect and life satisfaction on recovery
and survival in physically ill patients. Meta-analytically
combining these studies revealed a Likelihood Ratio of 1.14,
indicating a small but significant effect. Higher levels of
emotional well-being are beneficial for recovery and survival
in physically ill patients. The findings show that emotional
well-being predicts long-term prognosis of physical illness.
This suggests that enhancement of emotional well-being
may improve the prognosis of physical illness, which should
be investigated by future research.
Keywords Meta-analysis Emotional well-being
Recovery Survival Prognosis Physical illness
This meta-analysis investigates emotional well-being as a
predictor of the prognosis of physical illness. We define
emotional well-being from a positive perspective, not as
the mere absence of symptoms of psychopathology. Cur-
rently, most studies on the relation between mental and
physical health investigated the presence or absence of
psychopathology. These studies show that psychopathol-
ogy is related to the course and severity of several physical
diseases. For example, depression is associated with
increased osteoporosis (Michelson et al., 1996), coronary
heart disease (Glassman & Shapiro, 1998), diabetes com-
plications (De Groot et al., 2001), cancer incidence, pro-
gression (Spiegel & Giese-Davis, 2003) and cancer
mortality (Satin et al., 2009), and anxiety may influence the
development of coronary heart disease (Kubzansky &
Kawachi, 2000).
By contrast, well-being may play an additional protec-
tive role in the course of physical diseases. After all, there
is accumulating evidence that psychopathology and well-
being are more than merely opposite poles of the same
dimension (Huppert & Whittington, 2003; Keyes, 2005,
2007; Lamers et al., 2011; Watson & Tellegen, 1985), and
both well-being and mental disorders may have indepen-
dent impacts on physical health. To date, six reviews of the
literature synthesized effects of well-being on physical
health (Chida & Steptoe, 2008; Diener & Chan, 2011;
Howell et al., 2007; Lyubomirsky et al., 2005; Pressman &
Cohen, 2005; Veenhoven, 2008). In general, the conclu-
sions are favorable with well-being being positively asso-
ciated to better health (Diener & Chan, 2011; Howell et al.,
2007; Lyubomirsky et al., 2005), reduced risk of illness and
injury (Pressman & Cohen, 2005), and lower mortality
rates (Chida & Steptoe, 2008; Pressman & Cohen, 2005;
Veenhoven, 2008). In samples of healthy people, the
results of these studies clearly point towards the positive
effects of well-being on physical health. However, results
appear to be mixed in physically ill populations.
S. M. A. Lamers (&)G. J. Westerhof
E. T. Bohlmeijer
Psychology, Health and Technology, University of Twente,
P.O. Box 217, 7500 AE Enschede, The Netherlands
L. Bolier F. Smit
Trimbos Institute, Utrecht, The Netherlands
J Behav Med (2012) 35:538–547
DOI 10.1007/s10865-011-9379-8
To illustrate, Howell et al. (2007) found positive effects
of well-being on physical health for both healthy and dis-
eased populations, although results differed across health
outcomes. The findings suggest that well-being may
enhance physical functioning in healthy adults and improve
management of symptoms in diseased adults. For example,
the likelihood of longevity increases for individuals with
high well-being compared to those with low well-being, and
this survival rate even increases 10% for individuals with
chronic diseases who report high versus low well-being. The
meta-analysis of Chida and Steptoe (2008) also shows pro-
tective effects of well-being on survival in diseased popu-
lations with renal failure and HIV. Even though Howell et al.
(2007) and Chida and Steptoe (2008) show that well-being
generally is related to better physical health in diseased
adults, Diener and Chan (2011), Pressman and Cohen
(2005), and Veenhoven (2008) report otherwise. Diener and
Chan (2011) conclude that findings with respect to diseased
populations are mixed. Although Pressman and Cohen
(2005) and Veenhoven (2008) state that there is too little
consistency in the data to draw robust conclusions, both
reviews suggest that there may be no effects or even adverse
effects of well-being on physical health. In general, the
pattern of research findings seems to point towards positive
effects or no effects in relatively mildly diseased adults,
where adherence to medication and behavioral factors such
as physical exercise could play a role, and negative effects in
severely diseased adults with high short-term mortality rates
(Pressman & Cohen, 2005; Veenhoven, 2008).
In sum, the existing reviews produce inconsistent evi-
dence with respect to well-being as a predictor of physical
health in diseased populations. Conclusions across healthy
and diseased populations differ, because the outcomes
differ as well. In healthy individuals, the desirable health
outcome is to stay healthy and to reduce mortality and the
development of physical illness. Individuals with physical
diseases already experience a diminished physical health,
resulting in a different set of aims, such as decreasing
symptom severity, preventing worsening of disease, and
increasing survival rates.
Present study
This meta-analysis will focus on physically diseased
patients, aiming to prospectively study the effects of
emotional well-being on the prognosis of physical disease.
The objective is to broadly investigate the prognosis,
including survival, disease progress, recovery, and func-
tional status. In addition, this systematic review will
investigate emotional well-being, defined in the hedonic
tradition of well-being research (Diener et al., 1999). In
this research tradition, emotional well-being consists of an
affective component, concentrating on positive emotions
such as feelings of happiness, and a cognitive component,
concentrating on evaluations of life such as life satisfac-
tion. The previous literature reviews applied diverse defi-
nitions and terminology of well-being, investigating
positive emotions (Pressman & Cohen, 2005; Veenhoven,
2008), positive emotions and positive dispositions such as
optimism and sense of humor (Chida & Steptoe, 2008;
Diener & Chan, 2011), or all positive psychological con-
structs (Howell et al., 2007). Moreover, several of these
reviews included studies which measured quality of life by
items on physical health and functioning (Howell et al.,
2007). Other studies used positive affect adjectives such as
active and energetic (Pressman & Cohen, 2005). These
items might measure physical health instead of well-being.
Thus to avoid confounding, this meta-analysis will employ
a strict and narrow focus on emotional well-being, and in
doing so will try to avoid contamination.
To further unravel the inconsistencies observed in
reviewed studies, this systematic review will apply meta-
analytic moderator analyses to evaluate how different
constructs of well-being, health-related outcome, year of
publication, follow-up time and sample size introduce their
own impact on outcome. Moreover, the methodological
quality of the included studies will be assessed and added
as a potential moderator, since effect sizes might be smaller
in high-quality studies than in other studies (Cuijpers et al.,
In sum, this meta-analysis will synthesize evidence that is
drawn from prospective studies on the relationship between
emotional well-being and the prognosis of physical illness,
in physically diseased samples across a range of health
outcomes. In addition, our study will encompass quality
assessment of the primary studies and we will employ meta-
analytical techniques such as meta-regression and meta-
analytic moderator analyses. The previous reviews of the
literature (Chida & Steptoe, 2008; Diener & Chan, 2011;
Howell et al., 2007; Lyubomirsky et al., 2005; Pressman &
Cohen, 2005; Veenhoven, 2008) included several of these
aims, but none of them combined all aspects into a single
systematic literature review. Since the research field of
positive psychology is growing rapidly, this review will also
include several new studies on the relation between emo-
tional well-being and the prognosis of physical illnesses.
Selection of studies
Studies were included if they reported on emotional well-
being or aspects of emotional well-being and on the
prognosis of physical illness, aiming to evaluate the pro-
spective effects of well-being on the prognosis. Studies
J Behav Med (2012) 35:538–547 539
were excluded when (1) the study design was not pro-
spective; (2) emotional well-being was not measured (e.g.,
emotional well-being was measured otherwise than the
presence of general well-being, positive affect and/or life
satisfaction, emotional well-being was part of a composite
index, or psychopathology was examined as indicator of
well-being); (3) the study population was physically heal-
thy, mentally disordered, or consisted of institutionalized
elderly; (4) the paper included insufficient information for
data extraction required for meta-analysis.
Search strategy
First, we searched the reference lists of the literature
reviews of Chida and Steptoe (2008), Diener and Chan
(2011), Howell et al. (2007), Lyubomirsky et al. (2005),
Pressman and Cohen (2005), and Veenhoven (2008) for
studies fitting the inclusion criteria. Second, a systematic
search was performed in two electronic databases, Medline
and PsycInfo, up to March 2011. The main search strategy
was based on two key components: emotional well-being
and prognosis of physical illness. Terms on both compo-
nents were searched in title, abstract and keywords. Emo-
tional well-being included the following terms of which at
least one had to be present: (well-being) or (wellbeing) or
(happiness) or (happy) or (life satisfaction) or (positive
affect) or (positive mood) or (positive emotion*). In
addition, at least one term on prognosis of physical illness
had to be present. With respect to prognosis, we were
mainly interested in recovery outcomes, using terms as
functional status, health, and survival. However, since
recovery outcomes were not always explicitly mentioned,
we also included search terms on recovery processes
(recovery, rehabilitation, surgery, surgical, post-operative,
postsurgical, morbidity, remission, convalescence), general
terms of physical diseases (patient, disease, illness, pain,
surviv*, mortality, injury, fracture, infarction) and terms on
specific diseases (cancer, tumor, diabetes, arthritis, osteo-
arthritis, fibromyalgia, arthrosis, heart failure, angina, car-
diac, cardiovascular, myocardial, coronary, thrombosis,
stroke, cardiovascular accident, COPD, lung disease,
bronchitis, aids, HIV). Only one of the search terms of
prognosis of physical illness had to be present.
We searched for peer-reviewed studies in the English
language with no limitations on the year in which the study
was published. To minimize the presence of publication
bias we also searched for dissertations. Furthermore, we
cross-checked the reference lists of included studies for
additional eligible studies. Potentially eligible studies were
independently selected by two reviewers (SL and LB) in
two phases. In the first phase, selection was based on title
and abstract, and in the second phase on the full-text paper.
All studies evaluated as potentially eligible by at least one
of the reviewers in the first selection phase, were evaluated
in the second selection phase. In the second phase, dis-
agreements between both independent reviewers were
resolved by consensus.
Information extraction
Our search revealed 17 eligible studies. The flow diagram
of the study selection is shown in Fig. 1. Searching the
reference lists of the literature reviews (Chida & Steptoe,
2008; Diener & Chan, 2011; Howell et al., 2007; Lyubo-
mirsky et al., 2005; Pressman & Cohen, 2005; Veenhoven,
2008) and searching databases revealed in total 2,901
records. After exclusion (see Fig. 1), 17 studies were
included in the meta-analysis. Of these studies, 6 studies
were identified by searching the reference lists and 11 by
the electronic search, thus adding new studies to the pre-
vious reviews.
Table 1shows an overview of the included studies. All
eligible studies were peer-reviewed articles. The study
populations were diverse, including heart and vascular
diseases (n=6), cancer (n=1), renal disease (n=1),
spinal cord injury (n=1), HIV (n=1), diabetes (n=1),
arthritis (n=1), stroke (n=1), hip fracture (n=1),
respiratory disorder (n=1), general acute events, includ-
ing stroke, hip fracture and heart attack (n=1), and gen-
eral medical patients (n=1). The sample sizes ranged
from 44 to 5,025 (M=749.7; SD =1139.5). Three types
of well-being constructs were extracted: general well-being
(n=1), positive affect (n=13), and life satisfaction
(n=3). The studies measured general well-being using the
WHO-5 well-being index (n=1; Heun et al., 1999),
positive affect using the subscale Positive affect of the
Center for Epidemiological Studies Depression Scale
(n=7; Radloff, 1977), the subscale Positive affect of the
Hospital Anxiety and Depression Scale (n=2; Herrmann,
1997), the Mood Adjective Check List (n=2; Nowlis,
1965), and the Global Mood Scale (n=2; Denollet, 1993).
Life satisfaction was measured by the Satisfaction With
Life Scale (n=1; Diener et al., 1985), the MOS short form
general health survey (n=1; Stewart et al., 1988), and the
Life Situation Questionnaire (n=1; Krause, 1992).
The type of outcome measures included functional sta-
tus (n=6), health status (n=1), and survival (n=10).
We combined functional status and health status as
recovery outcomes. Functional status was measured by the
Duke Activity Status Index (n=1; Hlatky et al., 1989),
(modified version of the) Katz’s Activities of Daily Living
scale (n=2; Katz et al., 1963), the Inpatient Rehabilita-
tion Facilities-Patient Assessment Instrument (n=1;
Ottenbacher et al., 1996), the EuroQol (Euroqol group,
1990), and by measuring usual walking speed, rapid
walking speed and chair stands (n=1). Of the 10 studies
540 J Behav Med (2012) 35:538–547
measuring survival as outcome, 9 studies measured sur-
vival status (alive or deceased at follow-up) and 1 study
measured survival time. The studies reported hazard ratios
(n=6), risk ratios (n=3), odds ratios (n=4), regression
coefficients (n=3) or means (n=1). The follow-up time
ranged from 3 months to 11 years with a mean of
4.47 years (SD =3.93), and the papers were published
between 1996 and 2009.
Information was extracted on study design, type of study
population (e.g., cancer patients), sample size, type of well-
being construct, type of outcome measures, and the study’s
outcome measure. For each paper, we extracted the rele-
vant and most reliable outcome which was most com-
pletely adjusted for potential confounders, such that we
obtained a single outcome per paper. For one study (Ver-
steeg et al., 2009) we performed a meta-analysis to syn-
thesize three odds ratios on mobility, self-care, and
activities, into a single odds ratio. Moreover, we extracted
the results based on baseline emotional well-being instead
of change in emotional well-being over time. For one study
(Moskowitz, 2003), the result based on multiple measure-
ments of well-being was extracted, since the study did not
report results based on baseline emotional well-being.
When a paper included insufficient information for data
extraction required for meta-analysis, we contacted the
authors for additional information.
Quality assessment
Two reviewers (SL and LB) independently assessed
methodological quality of the included studies, using a
protocol based on the quality checklist for observational
studies of Wong et al. (2008). We adapted the checklist to
our study aims into a checklist consisting of five quality
criteria on external validity, response rate, reliability,
control for confounding demographic variables, and con-
trol for confounding health variables. For the studies on
recovery we included an additional item on the objective-
ness of the recovery measurements (i.e., self-report versus
laboratory test). Each criterion was rated as 0 (study does
not meet criterion) or 1 (study meets criterion). The
interrater reliability was 89.1%. The overall quality of the
study was assessed by dividing the total score by the total
number of applicable items, resulting in a quality score
between 0 and 1.00.
The quality of the studies ranged from 0.50 to 1.00
(M=0.74; SD =0.17). Three of the studies met all
quality criteria. In ten studies the reliability of the scale
measuring emotional well-being was not reported (n=1)
or Cronbachs alpha was lower than .60 (n=9), mainly
because well-being was measured by positive affect sub-
scales from depression and anxiety questionnaires. The
criterion assessing whether course of disease was measured
studies (n = 2,934)
Included Eligibility
Records identified through
reference list searching
(n = 67)
Additional records identified
through database searching
(n = 3,190) Dissertations
(n = 256)
Records after duplicates removed
(Medline, PsycInfo and reference lists)
(n = 2,901)
Records screened
(n = 2,901)
Records excluded
(n = 2,783)
Full-text articles excluded
Full-text articles
assessed for eligibility
(n = 118)
(n = 101)
1. Emotional well-being was not
measured (68 studies)
2. The study design was not
prospective (14 studies)
3. The study population was not
physically diseased
(9 studies)
Studies included in
(n = 17)
4. The paper included insufficient
information for data extraction
required for meta-analysis (10
Fig. 1 Flow chart
J Behav Med (2012) 35:538–547 541
Table 1 Descriptives of the studies on emotional well-being as predictor of the course of physical disease
Study Quality
Participants Predictive
Outcome measure
Results Likelihood
ratio (95%
confidence interval)
et al.
1.00 6 Chronic heart disease
Survival 1.024 (1.005–1.042) +
Brown et al.
0.80 10 Cancer (N=205) Positive affect
Survival 0.990 (0.938–1.045) 0
et al.
0.67 3 Coronary artery disease,
age 60+ (N=948)
Positive affect
Functional status
1.609 (1.039–2.492) +
Denollet et al.
0.80 2 Coronary artery disease
Positive affect
Survival 2.550 (1.479–4.397) +
Fisher et al.
0.67 2 Arthritis, age 65+
Positive affect
Functional status (ADL) 1.099 (1.024–1.181) +
Fredman et al.
0.50 2 Hip fracture, age 65+
Positive affect
Functional status: usual
and rapid walking
speed, chair stands
2.700 (1.096–6.654) 0
Kimmel et al.
1.00 4 Hemodialysis patients
Life satisfaction
Survival 1.205 (0.960–1.513) 0
Konstam et al.
0.80 3 Congestive heart failure
Life satisfaction
Survival 0.949 (0.899–1.001) 0
Krause et al.
1.00 11 Spinal cord injury
Life satisfaction
Survival 1.990 (1.373–2.885) +
0.60 10.8 HIV + patients (N=407) Positive affect
Survival 1.163 (1.042–1.299) +
et al.
0.80 10 Diabetic patients
Positive affect
Survival 1.111 (0.962–1.284) 0
Olofson et al.
0.60 8 Chronic alveolar
Positive affect
Survival 1.961 (0.901–4.167) 0
Ostir et al.
0.50 1 Acute events (stroke, heart
attack or hip fracture),
age 65+ (N=240)
Positive affect
Functional status (ADL) 2.700 (1.096–6.653) +
Ostir et al.
0.50 0.25 Stroke, age 55+ (N=823) Positive affect
Functional status
Pelle et al.
0.83 1 Chronic heart failure
Positive affect
Health status (HCS) 0.865 (0.603–1.241) 0
Scherer and
0.80 1 Patients of the general
medical ward (N=575)
Positive affect
(HADS; 1 item
on enjoyment)
Survival 1.400 (1.016–1.930) +
Versteeg et al.
0.83 1 Coronary artery disease
Positive affect
Functional status
(EQ5D mobility)
1.031 (0.649–1.667) 0
Range from 0.00 (low quality) to 1.00 (high quality), based on external validity, response rate, reliability, control for confounding demographic
variables, control for confounding health variables, and objectiveness of the recovery outcomes (not applicable for studies on survival)
Zung =Zung self-rating depression scale (SDS subscale well-being); WHO =WHO-5 well-being index; MACL Mood Adjective Check list,
HADS Hospital Anxiety and Depression Scale (subscale positive affect), SWLS Satisfaction with Life Scale; MOS MOS short form general health
survey, LSQ Life Situation Questionnaire (subscale), CES-D Center for Epidemiologic Studies Depression Scale (subscale positive affect), GMS
Global Mood Scale
DASI Duke Activity Status Inventory, ADL Activities of Daily Living Scale, IRF-PAI Inpatient Rehabilitation Facilities—Patient Assessment
Instrument, HCS Health Complaints Scale (subscale cardiac symptoms), EQ5D EuroQol-5D
+=Positive effect (PB.05); 0 =No effect (P[.05); -=Negative effect (PB.05)
542 J Behav Med (2012) 35:538–547
objectively (i.e., no self-report), was only applicable for the
studies measuring functional status or health status. Of
these studies (n=7), only one met this quality criterion.
We used the software Comprehensive Meta Analysis
(CMA) to meta-analytically combine study outcomes. For
each study, we extracted the hazard ratio, risk ratio or odds
ratio and its confidence intervals. Regression coefficients
and means were converted to odds ratios using CMA. We
combined the ratios, referring to the hazard ratios, risk
ratios and odds ratios as likelihood ratios (LR). When
necessary the ratio was inverted such that all LRs above 1
indicate a positive relationship of emotional well-being to
the prognosis of physical illness. The meta-analysis
included weighting of the study LRs by the inverse of the
standard errors, based on the confidence intervals. With
small studies tending to have wider confidence intervals
and large studies to have narrow confidence intervals, the
confidence interval reflects the precision of the LR. The LR
is considered statistically significant if the confidence
interval (95%) excludes the null value of 1.
A random-effects meta-analysis was performed, because
of the heterogeneity across the studies. The random-effects
method allows to assume that the studies are estimating
different but related effects, thus relacing the assumption
that all studies are replicas. In addition, the random-effects
model makes an adjustment to the study weights according
to the extent of heterogeneity (Deeks et al., 2008), which
translates into a broad 95% confidence interval around the
pooled effect estimate.
We performed an overall analysis, as well as subgroup
analyses and meta-regression analyses to identify potential
moderators. In the subgroup analyses, we examined the
effects of emotional well-being on the prognosis of phys-
ical illness separately for positive affect and for each
measure of prognosis (survival; recovery). No subgroup
analyses were performed on overall well-being and life
satisfaction, since few studies measured these aspects of
emotional well-being (n=1 and 3, respectively). The
study population could not be split into more homogeneous
subgroups because of its (too large) diversity. In the meta-
regression analyses, we evaluated the potentially con-
founding relationship of sample size, the quality of the
studies, the follow-up length, and the publication year on
the relationship of interest: the impact of emotional well-
being on the prognosis of physical illness. To this end, we
used an unrestricted maximum likelihood mixed effects
regression. Moreover, we examined heterogeneity between
the studies by using the Q-test, indicating the probability of
heterogeneity, and the I
index, indicating the magnitude
of the heterogeneity. An I
between 0 and 30% was
considered as low, between 30 and 75% as moderate, and
between 75 and 100% as high heterogeneity (Deeks et al.,
Publication bias in the studies was evaluated using three
indices: the funnel plot, the Egger’s test of intercept and the
Rosenberg fail-safe number. The funnel plot is a graph of
effect size (LR) against sample size (N). When publication
bias is absent, the observed studies are expected to be
distributed symmetrically around the pooled effect size.
The Egger’s test of intercept is a correlation between study
precision (the inverse of the standard error) and the stan-
dardized effect (the effect size divided by its standard
error). The fail-safe number indicates the number of non-
significant unpublished studies needed to reduce the overall
significant effect to non-significance (Sterne et al., 2008).
We used Rosenberg’s (2005) weighted method for calcu-
lating fail-safe numbers, where studies with small variance
are given higher weight than those with large variance. For
the reporting of this meta-analysis, we applied PRISMA
guidelines (Moher et al., 2009).
An overview of the 17 selected studies is presented in
Table 1. The studies investigated the prospective relation-
ship of general well-being, positive affect or life satisfac-
tion to survival or recovery. None of the studies reported
negative effects of emotional well-being on the prognosis
of physical illness. The results of the 17 studies and the
meta-analysis are presented in Fig. 2. Meta-analytically
summarizing the effects across the studies revealed an
overall likelihood ratio of 1.14 (P\0.001), indicating a
small but significant effect of emotional well-being on the
course of physical disease. Since the studies were weigh-
ted, we also conducted a meta-analysis without the study of
Konstam et al. (1996), which is an outlier in sample size
(n=5,025) as reflected by its narrow confidence interval.
Meta-analytically combining the remaining 16 studies
revealed a higher likelihood ratio of 1.18 (P\.001),
indicating the positive relation of emotional well-being to
recovery and survival is even stronger when excluding the
study with the highest weight. The 17 studies were heter-
ogeneous as the variability of the effect sizes is larger than
would be expected from sampling error alone. This high
heterogeneity indicated that variability across the primary
studies largely stems from systematic factors, such as the
type of studied well-being, type of outcome or differences
in methodological quality of the studies.
We performed two subgroup analyses to evaluate whe-
ther the effects differed for positive affect or course of
disease outcomes. When examining the effects separately
for positive affect, the 13 studies on positive affect
J Behav Med (2012) 35:538–547 543
revealed an LR of 1.22 (P\.001). Positive affect was
significantly related to more survival and recovery. The
distribution of effect sizes within studies on positive affect
remained heterogeneous. Second, we performed a sub-
group analysis on type of outcome. We split the studies in
two groups, measuring recovery (n=7) or survival
(n=10). Meta-analytically combining the studies on
recovery and survival resulted in LRs of 1.39 (P=.02)
and 1.11 (P=.01), respectively. Emotional well-being
significantly predicted both survival and recovery later in
time, with the strongest relation to recovery. Although the
LR is higher for recovery, the confidence intervals show
that the ratio for recovery is estimated with less precision
than the ratio for survival. When taking type of outcome
into account as a moderator, the heterogeneity remained
moderate to large within studies on recovery and survival.
Moreover, we evaluated quality of the studies, follow-up
length, publication year, and sample size as moderators of
the relation between emotional well-being and course of
disease by performing three meta-regression analyses.
Results of the meta-regression were insignificant for study
quality (B=-.56; P=.24), follow-up length (B=-.01;
P=.53), publication year (B=.01; P=.59), and for
sample size (B=-.00; P=.23).
Finally, we evaluated publication bias. The funnel plot
indicated asymmetry, since the studies are mainly con-
centrated on the right side of the plot. The Egger’s test of
intercept (t=4.41; df =15; P\.001) also suggests that
bias exists. There is a significant correlation between study
precision (the inverse of the standard error) and the stan-
dardized effect (the effect size divided by the standard
error). Moreover, the fail-safe number indicated that 2.4
non-significant unpublished studies must be included in our
random-effects model to reduce the overall significant
effect to non-significance. The funnel plot, Egger’s test of
intercept and fail-safe number indicated the presence of
publication bias. To gain insight in the grey literature, we
searched the electronic databases for eligible dissertations.
Three dissertations were eligible (Caron, 1997; Hamilton,
1996; Ostir, 2001), but excluded because the studies were
already included in the meta-analysis (Ostir, 2001) or data
required for meta-analysis were unavailable despite con-
tacting the authors for additional information (Caron, 1997;
Hamilton, 1996). These three dissertations reported posi-
tive effects in the dissertation abstract, showing positive
effects of well-being on course of disease in unpublished
studies. Furthermore, given the novelty of the focus on
positive well-being in relation to physical health, it is
unlikely that many studies with negative findings are
unreported (Diener & Chan, 2011). However, we have to
interpret the results in our meta-analysis carefully, since
effects of well-being on course of disease might be over-
Main findings
This meta-analysis synthesized studies on emotional well-
being as predictor of the prognosis of physical illness,
while in addition evaluating the impact of putative mod-
erators such as type of outcome. Although previous liter-
ature reviews included several of these study aims
(Lyubomirsky et al., 2005; Pressman & Cohen, 2005;
Howell et al., 2007; Chida & Steptoe, 2008; Veenhoven,
2008; Diener & Chan, 2011), this is the first study to our
knowledge that combines all aspects into a single review.
Our literature search identified 17 eligible papers, of which
nine new studies in addition to the studies included in
earlier reviews. This shows that the research field on the
relation of positive well-being to physical health is growing
Meta-analytically combining these studies showed that
positive emotional well-being is favorably related to the
prognosis of physical illness. Patients with higher baseline
Fig. 2 Forest plot
544 J Behav Med (2012) 35:538–547
levels of emotional well-being have better recovery and
survival rates than patients with low levels of emotional
well-being. Although the effect is small, it is remarkable
that emotional well-being at baseline has significant effects
on physical health later in time, since the average follow-
up is approximately after 4 years. The effect size of the
relation between emotional well-being and course of dis-
ease is even similar for studies with short and long follow-
Subgroup analyses indicated that emotional well-being
is related to both survival and recovery. Moreover, positive
affect is beneficial. Positive affect may influence immune
and cardiovascular systems directly by activating the
autonomic nervous system and the Hypothalamic–Pitui-
tary–Adrenal axis (HPA) thus buffering the impact of
stress. Positive affect has also an indirect favorable effect
by increasing health behavior and engagement in social
networks (Pressman & Cohen, 2005; Howell et al., 2007).
There were not enough studies to conduct a subgroup
analysis on life satisfaction (3 studies) and well-being (1
Recommendations for future research
It is important for future research to take into account that
the impact of emotional well-being on course of disease
might differ across health outcomes, well-being measures,
and study populations. As suggested in previous literature
reviews, effects might also differ across diseases (Chida
and Steptoe, 2008). In addition, Pressman and Cohen
(2005) and Veenhoven (2008) state that well-being has
beneficial effects in relatively mildly diseased adults and
negative effects in severely diseased adults. For our future
understanding of the role of well-being in disease pro-
gression, it is highly relevant whether well-being has
similar effects in various disease populations. Unfortu-
nately, the study populations in the current meta-analysis
were too diverse to further investigate effects across dis-
Moreover, other population characteristics could play a
role in the relation between emotional well-being and
course of disease. Pressman and Cohen (2005) found that
positive affect was associated with lower mortality rates,
mainly in older community-residing adults. They suggest
that the association is possibly stronger in older partici-
pants. This meta-analysis could not unravel the effects of
age and health outcome, since the studies on survival
included patients of all ages, whereas studies on recovery
more often included only older patients. Additionally,
results could differ across gender. Brummett et al. (2009)
and Fisher et al. (2004) found that effects of well-being on
recovery were stronger for males than for females. In the
current meta-analysis, the patient populations were too
diverse to examine differential effects across well-being
and outcome measures, diseases, age and gender, but we
recommend investigating these aspects in future research.
Strengths and limitations
One of the strengths of this systematic review is the focus
on emotional well-being as the presence of well-being,
positive affect, or life satisfaction. We investigated positive
psychological aspects, whereas previous reviews also
included studies on quality of life which use items on
physical functioning and health. The focus on other aspects
than emotional well-being was our main criterion for
exclusion of studies. Aspects as vitality, energy, and opti-
mism might indirectly measure health (Pressman & Cohen,
2005). In addition, we included control for baseline health
status as a quality criterion, which was present in 14 of the
17 included studies.
Most studies used subscales from depression scales to
measure positive affect. For example, both the Hospital
Anxiety and Depression Scale (HADS) and the Center for
Epidemiologic Studies Depression Scale (CES-D) include
a subscale on positive affect. However, these question-
naires are designed to screen for depressive symptoms
rather than to measure positive affect, resulting in low
subscale reliability (Penninx, 2000). Additional studies
need to be conducted, using reliable questionnaires which
are designed to measure well-being, such as the Positive
and Negative Affect Scales (PANAS; Watson et al., 1988)
and Mental Health Continuum-Short Form (MHC-SF;
Lamers et al., 2011).
Although most studies used depression scales to measure
aspects of positive well-being, few studies included nega-
tive aspects of mental health such as psychopathology and
negative affect as a confounding variable, to evaluate the
unique effects of emotional well-being. Studies that did
evaluate the unique effects of positive emotional well-being
report positive results, such as Brummett et al. (2009).
In addition, the results from our meta-analysis have to
be interpreted carefully. First, the studies used different
covariates varying from baseline health characteristics to
demographic characteristics such as gender and age,
making the studies diverse. The high heterogeneity con-
firmed that the variability across the studies was larger than
would be expected from sampling error alone. Although
study quality, in which control for baseline health status
and for demographics were used as quality criteria, was not
related to the effect size of the study, we have to take the
high variability and diversity in covariates across studies
into account. Moreover, the results have to be interpreted
carefully because of potential publication bias. The effects
of emotional well-being on recovery and survival might be
J Behav Med (2012) 35:538–547 545
Conclusion and implications
Emotional well-being predicts long-term prognosis of
physical illness. Higher levels of emotional well-being are
beneficial for recovery and survival rates in physically
diseased patients. Although the effects are small, the
findings are important. Recovery and survival are highly
relevant outcomes. Moreover, since physical diseases such
as coronary heart disease and cancer are highly prevalent,
small effects of emotional well-being on prognosis of
physical illness have a large impact in the population. In
addition, several psychological interventions are effective
in enhancing well-being, such as Acceptance and Com-
mitment Therapy (Fledderus et al., 2010) and well-being
therapy (Fava et al., 1998). By the enhancement of well-
being, these interventions might also improve recovery and
survival in physical illness. Future research should inves-
tigate effects of psychological interventions on the prog-
nosis of physical illness.
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medium, provided the original author(s) and source are credited.
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... Research suggests that well-being and psychopathology are related, yet distinct dimensions of mental health (Keyes, 2005). Well-being has been shown to be related to less medical consumption and improved mental and physical health, personal functioning, societal participation, productivity, and longevity (Chida & Steptoe, 2008;Hone et al., 2015;Howell et al., 2007;Lamers, Bolier, et al., 2012;Lamers, Glas, et al., 2012;Lyubomirsky et al., 2005). High levels of well-being seem to protect from mental disorders Schotanus-Dijkstra et al., 2016) and increase the likelihood of recovery from mental illness (Iasiello et al., 2019;Schotanus-Dijkstra et al., 2019). ...
... First, well-being as measured with the MHC-SF might be a relatively stable construct. Support for this comes from a representative longitudinal study including 1,932 Dutch adults, showing that all dimensions of the MHC-SF were consistent over a period of nine months and four timepoints (Lamers, Bolier, et al., 2012;Lamers, Glas, et al., 2012). Previously published meta-analyses on well-being included more specific outcomes of well-being, such as positive affect or hope (e.g. ...
... Our study offers strong support for this conclusion, as the way hedonic and eudaimonic well-being are measured in included studies is standardized since all of the studies used one consistent measurement instrument. This finding is also important, as studies have shown that both hedonic and eudaimonic well-being are important predictors of mental and physical health (DuPont et al., 2020;Lamers, Bolier, et al., 2012;Lamers, Glas, et al., 2012;Martín-María et al., 2017;Wood & Joseph, 2010). Despite decreases in the effect sizes, effects on well-being were still significant at follow-up (with outliers included). ...
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The last decades experienced a rapid growth in the number of studies examining the effects of psychological interventions on well-being, yet well-being is often conceptualized and measured in different ways in these studies. Previous meta-analyses included studies with a plethora of different well-being instruments, which provides an ambiguous picture of the effectiveness. Furthermore, prior meta-analyses mainly included specific types of psychological interventions. The goal of the current study was to synthesize the effectiveness of psychological interventions in improving well-being as measured with one consistent and comprehensive well-being instrument, the Mental Health Continuum (MHC). The literature was searched for RCTs examining the effect of psychological interventions in both clinical and non-clinical populations that used the MHC as outcome. 46 RCTs (N = 7,618) and 64 comparisons were analyzed using 3-level meta-analysis models. When compared with non-active control groups, small significant effects were found for total well-being at posttest (β = 0.25), and for the subscales emotional (β = 0.27), social (β = 0.25), and psychological well-being (β = 0.30). Effects were smaller but still significant at follow-up. Subgroup analyses yielded significantly stronger effects for guided compared with non-guided interventions and for studies with good quality. Effects were similar for clinical and non-clinical populations and specific types of interventions. Mindfulness and ACT interventions significantly improved well-being. These findings suggest that psychological interventions can improve well-being, and that different interventions have the potential to improve well-being. Effects also seem to be independent of other factors, including delivery mode, format or target group.
... This distress depletes patients' quality of life and negatively influences disease progression and survival rates [7][8][9]. However, research on well-being's influence on mental health also shows effects and improves recovery and survival rates in physically ill patients [10]. Several psychological interventions like Acceptance and Commitment Therapy (ACT) [11] or well-being therapy [12] aim at enhancing well-being. ...
... Especially interventions for improving PMH for cancer patients like ACT or meaning-based interventions in psycho-oncology can reduce mental health problems and have positive effects on recovery and survival rates [10,14]. Assessing the current status of the PMH of patients can be a starting point for selecting appropriate interventions for patients. ...
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Background The investigation of patient-reported outcomes and psycho-oncological interventions mainly focuses on psychological distress or psychopathology. However, the recognition of the equal importance of positive mental health (PMH) has increased lately. The PMH-scale is a brief questionnaire allowing to assess well-being in individuals in the general population and in patients. Previous studies evaluated the psychometric properties of the PMH-scale using classical test theory (CTT). This study is the first to investigate the PMH-scale in patients with cancer using item analysis according to the Rasch model. Methods In total, N = 357 cancer patients participated in the study. A Rasch analysis of the PMH-scale was conducted including testing of unidimensionality, local independence, homogeneity and differential item functioning (DIF) with regard to age, gender, type of cancer, the presence of metastases, psycho-oncological support, and duration of disease. Additionally, the ordering of the item thresholds as well as the targeting of the scale were investigated. Results After excluding one misfitting item and accounting for local dependence by forming superitems, a satisfactory overall fit to the Rasch model was established (χ² = 30.34, p = 0.21). The new PMH-8 scale proved to be unidimensional, and homogeneity of the scale could be inferred. All items showed ordered thresholds, there was no further item misfit. DIF was found for age, but as the impact of DIF was not substantial, no adjustment related to the age-DIF had to be made. The Person Separation Index (PSI = 0.89) was excellent, indicating excellent discriminatory power between different levels of positive mental health. Overall, the targeting of the PMH-8 was good for the majority of the present sample. However, at both ends of the scale item thresholds are missing as indicated by a slight floor effect (1.4%) and a considerable ceiling effect (9.8%). Conclusions Overall, the results of the analysis according to the Rasch model support the use of the revised PMH-scale in a psycho-oncological context.
... Taking a person-centred perspective allows for recognition of the patient as a complete person [4], which is related to increased knowledge, improved service experience, and better outcomes [21,22]. Healthcare providers taking an interest in non-clinical concerns can help foster emotional wellbeing, which is predictive of physical health [23]. ...
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This study aimed to explore the experiences of adult clients with hearing loss and their audiologists in using an online tool, the Living Well Tool (LWT), during initial audiology appointments. The LWT is designed to help clients identify when and where it is most important for them to communicate effectively and live well with hearing loss. A total of 24 adult clients with hearing loss and two audiologists participated in this study. Clients were invited to complete the LWT prior to their next audiology appointment, however, most clients chose to use the LWT in-session with their audiologist. Following the appointment, clients and audiologists participated in individual qualitative semi-structured interviews to explore their experiences of using the LWT, and the extent to which the LWT facilitated person-centred care. Qualitative analysis five key themes which reflected participants’ experiences and perceptions of using the LWT: (1) the LWT enhances audiological care; (2) the LWT supports person-centred audiological care; (3) the use of the LWT should be individualised; (4) users value comprehensiveness; and (5) users value accessibility. This study demonstrated that the LWT supported the provision of person-centred audiological care, providing a flexible, comprehensive and accessible means for audiologists to gain an understanding of their clients’ needs and preferences. However, it was also noted that the use of a tool must be individualised and accessible for all.
... Evidence on whether population mental health and SWB changed in accordance with pandemic waves and respective government responses e deteriorating when restrictions got more stringent and improving when restrictions were eased e is still conflicting. SWB is not only a desirable outcome in itself 7 but has also been associated with better illness prognosis 8 and lower all-cause and cause-specific mortality. 9 Answering whether and how the COVID-19 pandemic is affecting population-level SWB requires frequent monitoring of representative samples of the target population under different levels of exposure to the pandemic threat (new COVID-19 cases and deaths) and pandemic-related mitigation measures. ...
Objectives This study was conducted to describe how population-level subjective well-being (SWB) evolved throughout the pandemic. Study design Thirty waves of panel data representative of the Austrian population aged 14 and above collected between March 2020 and March 2022. Participants were quota sampled from a pre-existing online panel based on key demographics closely mirroring the Austrian resident population. Methods We present wave-specific means of SWB throughout two years of the COVID-19 pandemic next to the evolution of the pandemic (cases and deaths) and stringency of lockdown measures in Austria as well as estimate their bivariate correlations. Results The analysed sample consisted of 3,293 participants contributing to a total of 46,168 observations. All components of SWB – negative affect, positive affect, and life satisfaction – showed population-level fluctuation between March 2020 and March 2022. The magnitude of these changes was small. Population-level SWB correlated with the incidence rate of COVID-19 deaths (negative affect: r=0.69, positive affect: r=-0.70, life satisfaction: r=-0.47), the Stringency Index (negative affect=0.50, positive affect=-0.47, life satisfaction=-0.47), and less so with the incidence of COVID-19 cases (negative affect=0.43, positive affect=-0.31, life satisfaction=-0.38). Conclusions Population-level SWB fluctuated in accordance with rises and falls in COVID-19 cases and deaths as well as with the stringency of lockdown measures. This connection suggests that incidence of COVID-19 cases and deaths, as well as public health measures to contain the pandemic affect population-level SWB and could thereby impact population health and productivity.
... When restricting to groups that showed persistent high wellbeing despite functional decline, we identified a higher sense of control over life as the most robust predictor of the disability paradox. Although there is theoretical and empirical research suggesting that promotion of SWB can lead to improvement of functioning or delay of decline (Howell et al., 2007;Lamers et al., 2012), more research should be directed towards addressing how to improve SWB and which factors contribute to maintenance of SWB despite agingrelated declines. ...
Objectives: The ‘disability paradox’ (DP) suggests that most older adults maintain subjective well-being (SWB) despite functional decline. However, this may depend the SWB component: positive affect (PA), negative/depressed affect (NA/DA) or life satisfaction (LS). We assessed trajectories of these components in older adults with substantial functional decline. Methods: Data originated from the Longitudinal Aging Study Amsterdam ( N = 2545) observed during 1992–2008. Using latent class growth analysis, we distinguished a group with substantial functional decline and examined their SWB trajectories and individual characteristics. Results: The DP occurred more frequently for DA (Men:73%, Women:77%) and LS (Men:14%, Women:83%) than for PA (Men:26%, Women:17%). Higher perceived control (mastery) emerged as the most consistent factor associated with higher odds of the DP. Discussion: We provide a nuanced view of the DP, shifting the question from whether it exists to for which dimension of SWB and for whom it is more or less apparent.
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In ‘The Great Discourse on the Establishing of Mindfulness’, the Buddha mentioned “There is this one way for the purification of beings, for overcoming sorrow and lamentation, for extinguishing of stress and suffering, for attaining to higher knowledge, and for the realisation of liberation” (Digha Nikaya 22). This ‘one way’ is the application of mindfulness meditation on body, feelings, mind, and phenomena. Such wisdom words of an enlightened teacher uttered more than 2,500 years ago are timeless truths which modern science has just begun to uncover. For four decades since Jon Kabat-Zinn founded the Stress Reduction Clinic at the University of Massachusetts Medical School to introduce the structured practice of mindfulness, the interest in mindfulness and other forms of meditation has grown exponentially. Meditation is no longer merely a spiritual quest practised at secluded religious centres but a mainstream mind-body therapy for health and wellbeing. Meditation classes are everywhere: hospitals, mental health clinics, nursing homes, the military, correctional centres, sports centres, universities, schools, and even in nurseries. Research has played a pivotal role to usher in this newfound interest in meditation. There is growing evidence supporting the health benefits of meditation in reducing stress, managing pain, enhancing cognition, improving resilience, cultivating positive emotions, and much more. However, cumulative knowledge on the study of meditation from various research disciplines including neuroscience, psychophysiology, cognitive science, mental health and public health represent only the tip of the iceberg. There is still much to discover from these ancient mind and body practices. This book is a compilation of recent research in the field of meditation. It provides a snapshot of exciting findings and developments such as the launch of a large-scale UK study to operationalise mindfulness in the mental health system, the possibility that Zen meditation can slow down cardiopulmonary ageing, a theoretical framework for describing meditation interventions in health research, the potential for meditation to address health inequality, the use of mindful self-compassion to enhance the wellbeing of adult learners, and the case study of a clinical psychologist and meditation teacher sharing her first-hand experience of living with spondylolisthesis in relative peace through applying mindfulness strategies. The included articles further contribute to our understanding of the role of meditation in health, defined by the World Health Organization as “not merely the absence of disease or infirmity, but a state of complete physical, mental and social wellbeing”. It is an honour to be academic editors for this Special Issue and a great pleasure to review many insightful manuscripts first-hand. We wish to thank the publisher for this excellent opportunity to serve the research community. We are also grateful for the hard work and support provided by the editorial office to make this project a success. To all the authors, thank you for your contributions. To the readers, thank you for your interest. A plethora of quality works from the latest meditation research await in the following pages. May you gain many useful insights!
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The purpose of this study was to investigate the relationship between emotional well-being and social well-being with educational Goal orientation of high school students. Sample and sample size: The statistical population was all high school girl students in Tehran during the years 2016-2017, 229 students were selected by cluster sampling and responded to the questionnaires. Instruments: To collect the data, Keyes & Magyar-Moe's subjective well-being questionnaire and academic Goal Orientation Questionnaire of Bouffard et al (1998) were used. Results: The results of data analysis showed that there was relationship between emotional and social well-being with educational goal orientation. Conclusion: It is suggested to provide information in the field of academic goal orientation for students, in order to increase the level of mastery goal orientation among students, and to increase their emotional and social well-being.
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The aim of this study was to investigate the relationship between perceived parenting styles with emotional well-being and social well-being of high school girl students in Tehran's 2nd district. The statistical population of this study was all high school girl students in Tehran during the years 2016-2017. The research method was descriptive and correlational; According to Morgan's table, 229 students were selected by cluster sampling and responded to the questionnaires. For data collection, Baumrind's parenting style questionnaire (1967), and Keyes & Magyar-Moe's subjective well-being questionnaire were used. Pearson correlation coefficient and regression coefficient were used to analyze the data. The results of data analysis indicated that there was a relationship between parenting styles with social well-being and emotional well-being and There was a positive and significant relationship between the authoritative parenting style with sub-components of social well-being (social acceptability, social realism, social participation, and social cohesion); there was also a significant relationship between the authoritative parenting style with positive and negative emotional well-being, while there was no meaningful relationship between Absolute permissive and authoritarian parenting styles with these components.
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V monografiji avtorice predstavljajo ugotovitve več raziskav, ki so jih izvedle v zadnjih desetih letih, in jih umestijo na področje pozitivne psihologije, ki se je kot znanstvena disciplina uveljavila po letu 2000. Kot teoretični okvir v prvem poglavju predstavijo raziskave laičnega pojmovanja sreče in teoretične modele subjektivnega blagostanja. Poudarek na znanstveni ustreznosti merskih instrumentov v pozitivni psihologiji je spodbudil interes za konstrukt subjektivnega blagostanja tudi na drugih področjih psihologije.
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Systematic reviews and meta-analyses have become increasingly important in health care. Clinicians read them to keep up to date with their field [1],[2], and they are often used as a starting point for developing clinical practice guidelines. Granting agencies may require a systematic review to ensure there is justification for further research [3], and some health care journals are moving in this direction [4]. As with all research, the value of a systematic review depends on what was done, what was found, and the clarity of reporting. As with other publications, the reporting quality of systematic reviews varies, limiting readers' ability to assess the strengths and weaknesses of those reviews. Several early studies evaluated the quality of review reports. In 1987, Mulrow examined 50 review articles published in four leading medical journals in 1985 and 1986 and found that none met all eight explicit scientific criteria, such as a quality assessment of included studies [5]. In 1987, Sacks and colleagues [6] evaluated the adequacy of reporting of 83 meta-analyses on 23 characteristics in six domains. Reporting was generally poor; between one and 14 characteristics were adequately reported (mean = 7.7; standard deviation = 2.7). A 1996 update of this study found little improvement [7]. In 1996, to address the suboptimal reporting of meta-analyses, an international group developed a guidance called the QUOROM Statement (QUality Of Reporting Of Meta-analyses), which focused on the reporting of meta-analyses of randomized controlled trials [8]. In this article, we summarize a revision of these guidelines, renamed PRISMA (Preferred Reporting Items for Systematic reviews and Meta-Analyses), which have been updated to address several conceptual and practical advances in the science of systematic reviews (Box 1). Box 1: Conceptual Issues in the Evolution from QUOROM to PRISMA Completing a Systematic Review Is an Iterative Process The conduct of a systematic review depends heavily on the scope and quality of included studies: thus systematic reviewers may need to modify their original review protocol during its conduct. Any systematic review reporting guideline should recommend that such changes can be reported and explained without suggesting that they are inappropriate. The PRISMA Statement (Items 5, 11, 16, and 23) acknowledges this iterative process. Aside from Cochrane reviews, all of which should have a protocol, only about 10% of systematic reviewers report working from a protocol [22]. Without a protocol that is publicly accessible, it is difficult to judge between appropriate and inappropriate modifications.
This article reports the development and validation of a scale to measure global life satisfaction, the Satisfaction With Life Scale (SWLS). Among the various components of subjective well-being, the SWLS is narrowly focused to assess global life satisfaction and does not tap related constructs such as positive affect or loneliness. The SWLS is shown to have favorable psychometric properties, including high internal consistency and high temporal reliability. Scores on the SWLS correlate moderately to highly with other measures of subjective well-being, and correlate predictably with specific personality characteristics. It is noted that the SWLS is suited for use with different age groups, and other potential uses of the scale are discussed.
The SWLS consists of 5-items that require a ratingon a 7-point Likert scale. Administration is rarely morethan a minute or 2 and can be completed by interview(including phone) or paper and pencil response. The in-strumentshouldnotbecompletedbyaproxyansweringfortheperson.Itemsofthe SWLSaresummedtocreatea total score that can range from 5 to 35.The SWLS is in the public domain. Permission isnot needed to use it. Further information regardingthe use and interpretation of the SWLS can be foundat the author’s Web site∼ediener/SWLS.html. The Web site alsoincludes links to translations of the scale into 27languages.
This study examined the independent relation of health-related quality of life (HRQL) to mortality and congestive heart failure (CHF)-related hospitalizations in patients with an ejection fraction of <0.35 followed for a mean of 36.5 months. A brief HRQL questionnaire was administered at baseline to patients randomized to placebo or enalapril in the Studies of left Ventricular Dysfunction (SOLVD) trial. participants had an ejection fraction of <0.35 and either symptomatic CHF (treatment trial, n = 2,465) or asymptomatic CHF (prevention trial, n 2,560). Baseline assessment of HRQL predicted mortality and CHF-related hospitalizations in symptomatic and asymptomatic patients randomized to enalapril and placebo treatment. Domains that were the stronger univariate predictors of mortality and CHF-related hospitalizations were activities of daily living (relative risk [RR] for mortality: 1.163, p < 0.000; for hospitalization: 1.215, p < 0.000), general health (RR for mortality: 1.205, p < 0.000; for hospitalization: 1.188, p < 0.000), and social functioning (RR for mortality 1.098, p < 0.000; for hospitalization: RR 1.156, p < 0.000). In the multivariate model, activities of daily living (RR for mortality 1.41, p < 0.000; for hospitalization: RR 1.43, p < 0.002), general health (RR for mortality 1.21, p < 0.000; for hospitalization RR 1.16, p < 0.013) and heart failure symptoms (88 for mortality 1.02, p < 0.025; for hospitalization RR 1.03, p < 0.004) were found to be independent risk factors. HRQL independently predicted mortality and CHF-related hospitalizations after adjustment for ejection fraction, age, treatment, and New York Heart Association classification in patients with an ejection fraction of < 0.35, randomized to enalapril and placebo treatment. HRQL provides additional clinical information regarding disease course and outcome that is not captured by traditional indexes of clinical status.
The CES-D scale is a short self-report scale designed to measure depressive symptomatology in the general population. The items of the scale are symptoms associated with depression which have been used in previously validated longer scales. The new scale was tested in household interview surveys and in psychiatric settings. It was found to have very high internal consistency and adequate test- retest repeatability. Validity was established by pat terns of correlations with other self-report measures, by correlations with clinical ratings of depression, and by relationships with other variables which support its construct validity. Reliability, validity, and factor structure were similar across a wide variety of demographic characteristics in the general population samples tested. The scale should be a useful tool for epidemiologic studies of de pression.
The Index of ADL was developed to study results of treatment and prognosis in the elderly and chronically ill. Grades of the Index summarize over-all performance in bathing, dressing, going to toilet, transferring, continence, and feeding. More than 2,000 evaluations of 1,001 individuals demonstrated use of the Index as a survey instrument, as an objective guide to the course of chronic illness, as a tool for studying the aging process, and as an aid in rehabilitation teaching. Of theoretical interest is the observation that the order of recovery of Index functions in disabled patients is remarkably similar to the order of development of primary functions in children. This parallelism, and similarity to the behavior of primitive peoples, suggests that the Index is based on primary biological and psychosocial function, reflecting the adequacy of organized neurological and locomotor response.