Bryan Rodgers

Australian National University, Canberra, Australian Capital Territory, Australia

Are you Bryan Rodgers?

Claim your profile

Publications (194)657.26 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Objective: Antidepressant use is widespread. While weight gain is a commonly reported side-effect of antidepressant use and has the potential to affect population health, there is little large-scale population-based evidence on the issue, particularly for long-term use (⩾12 months). The aim of this study is to investigate the association between antidepressant use and weight change, including whether this relationship varies according to antidepressant class, recency of use, duration of use and dose. Methods: Annual percentage weight change was calculated from self-reported weight at two time-points from 20,751 participants aged ⩾45 years from the 45 and Up Study - a population-based cohort study from New South Wales, Australia. Antidepressant use, ascertained from linked pharmaceutical data, from 19 months before baseline until end of follow-up (mean = 3.3 years of follow-up), was categorised as current, past-only, non-persistent or non-use. The association between antidepressant use and weight change was modelled using linear and multinomial logistic regressions and according to antidepressant class, recency, duration and dose. Results: Antidepressants were dispensed to 23% of participants (n = 4748) during the study period. Current antidepressant users were significantly more likely to gain >3% of their body weight annually than non-users (adjusted relative risk ratio = 1.19; 95% confidence interval: [1.03, 1.38]); the risk increased with increasing dose among current users (p[trend] = 0.003). Risk of weight gain did not vary significantly according to antidepressant class, recency or duration of use; however, statistical power was limited. No significant associations were found between antidepressant use and weight loss. Conclusion: Current antidepressant use was associated with modest but statistically significant annual gains in weight, with similar effects observed across the different classes of antidepressants used.
    No preview · Article · Oct 2015 · Australian and New Zealand Journal of Psychiatry
  • [Show abstract] [Hide abstract]
    ABSTRACT: Addressing stigma through social marketing campaigns has the potential to enhance currently low rates of treatment seeking and improve the well-being of individuals with the eating disorder bulimia nervosa. This study aimed to evaluate the persuasiveness of health messages designed to reduce stigma and improve mental health literacy about this disorder. A community sample of 1,936 adults (48.2% male, 51.8% female) from Victoria, Australia, provided (a) self-report information on knowledge and stigma about bulimia nervosa and (b) ratings of the persuasiveness of 9 brief health messages on dimensions of convincingness and likelihood of changing attitudes. Messages were rated moderately to very convincing and a little to moderately likely to change attitudes toward bulimia nervosa. The most persuasive messages were those that emphasized that bulimia nervosa is a serious mental illness and is not attributable to personal failings. Higher ratings of convincingness were associated with being female, with having more knowledge about bulimia nervosa, and with lower levels of stigma about bulimia nervosa. Higher ratings for likelihood of changing attitudes were associated with being female and with ratings of the convincingness of the corresponding message. This study provides direction for persuasive content to be included in social marketing campaigns to reduce stigma toward bulimia nervosa.
    No preview · Article · Sep 2015 · Journal of Health Communication
  • [Show abstract] [Hide abstract]
    ABSTRACT: We sought to elucidate the nature and extent of impairment in quality of life among individuals with binge eating disorder (BED) with and without the overvaluation of weight or shape ("overvaluation"). Subgroups of women - probable BED with overvaluation (n = 102), probable BED without overvaluation (n = 72), obese individuals reporting no binge eating ("obese control", n = 40), and "normal weight" individuals reporting no binge eating ("healthy control," n = 40) - were recruited from a community-based sample in which individuals with eating disorder symptoms were over-represented. They were compared on measures of eating disorder psychopathology and generic and disease-specific measures of quality of life. Scores on these measures among individuals with BED receiving specialist treatment were also considered. Participants with BED and overvaluation had high levels of eating disorder psychopathology and impairment in both generic and disease-specific quality of life, comparable to those of BED patients receiving specialist treatment, and significantly higher than all other subgroups, whereas participants with BED in the absence of overvaluation did not differ from obese controls on any of these measures. The findings provide further evidence for the need to consider reference to overvaluation among the diagnostic criteria for BED. The relative merits of the inclusion of overvaluation as a diagnostic criterion or as a diagnostic specifier for BED warrant greater consideration. Copyright © 2015. Published by Elsevier Ltd.
    No preview · Article · Jul 2015 · Behaviour Research and Therapy
  • [Show abstract] [Hide abstract]
    ABSTRACT: Prior studies on longitudinal continuity of adversity have mostly examined persistence of individual adversity, rather than of families and have focussed mainly on material disadvantage. However, adversity is multi-dimensional, and in the case of families with children, it includes psychosocial as well as material elements. While both material and psychosocial elements are recognized as critical to child development, these aspects of family adversity are often studied in isolation and there is a dearth of longitudinal evidence on the extent to which such factors are transient or persistent. Using the first three waves (2004–2005, 2006–2007, 2008–2009) of the longitudinal study of Australian children this paper investigated the consistency and continuity of multiple adversity in families with children using material and psychosocial indicators. First, longitudinal factor analysis determined that a consistent factor structure of multiple adversity adequately fit the data longitudinally. Second, cross-tabular analysis showed significant changes in the prevalence of specific adversities over waves. In particular adversity related to changes in family composition and social support followed an increasing trend. Adversity in two material elements—economic status and hardship—decreased over time. Third, variance-components models revealed that though aggregate scores of material and psychosocial adversity indicated a high degree of continuity over time, continuity in disaggregated measures showed that within families a great deal of variability in adversity occurs, with intra-class correlations ranging from 0.27 to 0.84. The more persistent forms of adversity—family, substance use, economic adversity—are areas where targeted interventions are feasible while employment conditions and time pressure are more transient and may require intervention at the population level to reduce overall prevalence of the adversities. Our study has reinforced the need to assess psychosocial adversity in studies of families with children as a balance to the more commonly utilized material adversity.
    No preview · Article · Jun 2015 · Social Indicators Research
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Widely held stigmatizing attitudes and beliefs toward bulimic eating disorders may lead to self-blame and reduced treatment seeking. Knowledge and familiarity with mental disorders may help decrease associated stigma. However, these relationships are not well understood in bulimia nervosa (BN). A community sample of 1828 adults aged 18 to 70 years completed a survey assessing stigmatizing attitudes and beliefs toward BN, knowledge and familiarity with the disorder, as well as levels of eating disorder symptoms. Knowledge of BN was negatively associated with three dimensions of stigmatization, personal responsibility (ρ = -0.28), unreliability (ρ = -0.19), and advantages of BN (ρ = -0.23). Familiarity revealed no association with stigmatization. Both men and women with high levels of eating disorder symptoms perceived BN as less serious than the participants with low levels of symptoms. Increasing community knowledge about bulimia may help mitigate stigmatization and perceived barriers to treatment.
    Full-text · Article · Mar 2015 · Journal of Nervous & Mental Disease
  • Bruce M Smyth · Maria Vnuk · Bryan Rodgers · Vu Son
    [Show abstract] [Hide abstract]
    ABSTRACT: Child support compliance continues to be a thorny policy issue. In Australia, major changes to the Child Support Scheme were introduced between 2006 and 2008, featuring a markedly different and purportedly ‘fairer’ system for the calculation of child support. Extra resources were also provided to the Child Support Agency (CSA) to ensure that child support is paid in full and on time. Did these initiatives lead to greater compliance by payers with their child support obligations? This article explores this question by examining child support compliance among several national random samples of CSA clients just prior to, 1 year after, and 3 years after, the introduction of a new child support formula on 1 July 2008. The new formula and strengthened enforcement regime appear to have had very little impact on compliance behaviour in Australia.
    No preview · Article · Jan 2015 · Journal of Family Studies
  • Bruce Smyth · Bryan Rodgers · Vu Son · Maria Vnuk
    [Show abstract] [Hide abstract]
    ABSTRACT: The Australian Child Support Scheme aims to ensure that children continue to be supported financially should their parents separate or never live together. Sweeping changes to the Australian Child Support Scheme were introduced between 2006 and 2008, featuring a dramatically different system for the calculation of child support and a more rigorous enforcement regime. The reforms were intended to respond to ongoing concerns about equity, and to changes in social expectations and practices in gender, work, and parenting. In this article we summarise key findings from a large cross-sequential study of the child support reforms. Although the new formula initially led to lower child support payments, and an increase in the proportion of separated mothers experiencing income disadvantage, payments two years later had increased slightly. More broadly, the new scheme appears to have resulted in little change in separated parents' policy knowledge, parenting arrangements, perceptions of fairness, and child support compliance. Taken together, these findings suggest that Australia may not have made as much progress as it would have liked in this thorny area of social policy - especially in relation to compliance and perceptions of fairness.
    No preview · Article · Jan 2015 · The Australian journal of social issues
  • Bryan Rodgers · Bruce M. Smyth · Elly Robinson
    [Show abstract] [Hide abstract]
    ABSTRACT: Mental health issues permeate the family law system - at least according to anecdote. Yet such issues are rarely mentioned in family-law research, policy, and practice. This article aims to stimulate discussion about the sometimes close and complex links between mental health issues and family law, and suggests a framework for how the family-law system might provide better emotional support to families in transition.
    No preview · Article · Dec 2014 · Journal of Family Studies
  • Bruce Smyth · Bryan Rodgers · Liz Allen · Vu Son
    [Show abstract] [Hide abstract]
    ABSTRACT: Despite widespread interest in patterns of parenting after separation over the past decade - especially in shared-time arrangements - few studies have explored the detail of post-separation parenting time schedules. This article: (a) provides a detailed snapshot of children’s overnight stays with each parent among a national random sample of 408 separated parents registered with the Australian Child Support Agency (CSA); and (b) develops a typology of parenting time that emphasises the contiguity of overnights and the frequency of children’s transitions between parents’ homes. Parenting time schedules are examined across a range of residence levels from 1-8 overnight stays per fortnight with fathers. While many separated fathers see their children mainly on weekends, the immense diversity of modern parenting time schedules points to a greater sharing of parental responsibilities and richer range of parenting contexts post-separation than previously evident in Australia. The article encourages researchers, parents, practitioners and policymakers to adopt a multi-dimensional view of parenting time rather than focus on time simply as a number or percentage.
    No preview · Article · Dec 2014 · Journal of Family Studies
  • [Show abstract] [Hide abstract]
    ABSTRACT: We aimed to investigate antidepressant use, including the class of antidepressant, in mid-age and older Australians according to sociodemographic, lifestyle and physical and mental health-related factors. Baseline questionnaire data on 111,705 concession card holders aged ⩾45 years from the 45 and Up Study-a population-based cohort study from New South Wales, Australia-were linked to administrative pharmaceutical data. Current- and any-antidepressant users were those dispensed medications with Anatomical Therapeutic Chemical classification codes beginning N06A, within ⩽6 months and ⩽19 months before baseline, respectively; non-users had no antidepressants dispensed ⩽19 months before baseline. Multinomial logistic regression was used to calculate adjusted relative risk ratios (aRRRs) for predominantly self-reported factors in relation to antidepressant use. Some 19% of the study population (15% of males and 23% of females) were dispensed at least one antidepressant during the study period; 40% of participants used selective serotonin reuptake inhibitors (SSRIs) only and 32% used tricyclic antidepressants (TCAs) only. Current antidepressant use was markedly higher in those reporting: severe versus no physical impairment (aRRR 3.86(95%CI 3.67-4.06)); fair/poor versus excellent/very good self-rated health (4.04(3.83-4.25)); high/very high versus low psychological distress (7.22(6.81-7.66)); ever- versus never-diagnosis of depression by a doctor (18.85(17.95-19.79)); low-dose antipsychotic use versus no antipsychotic use (12.26(9.85-15.27)); and dispensing of ⩾10 versus <5 other medications (5.97(5.62-6.34)). Sociodemographic and lifestyle factors were also associated with use, although to a lesser extent. Females, older people, those with lower education and those with poorer health were more likely to be current antidepressant users than non-users and were also more likely to use TCAs-only versus SSRIs-only. Use of antidepressants is substantially higher in those with physical ill-health and in those reporting a range of adverse mental health measures. In addition, sociodemographic factors, including sex, age and education were also associated with antidepressant use and the class of antidepressant used. © The Royal Australian and New Zealand College of Psychiatrists 2014.
    No preview · Article · Dec 2014 · Australian and New Zealand Journal of Psychiatry
  • Caroline Bentley · Jonathan Mond · Bryan Rodgers
    [Show abstract] [Hide abstract]
    ABSTRACT: Objective : We sought to test the hypothesis that eating-disordered behavior (EDB) is associated with comparable levels of impairment in psychosocial functioning in men and women. Method: Postal questionnaires that assessed EDB (binge eating, purging, extreme dietary restriction, excessive exercise and weight/shape overvaluation) and psychosocial impairment (general psychological distress, life satisfaction and social support) were completed by a general population sample of men (n = 1011) and women (n = 1897). Results: Binge eating, purging and overvaluation were associated with comparable levels of psychosocial impairment for both men and women and this was the case for each of the three measures of psychosocial functioning employed. Extreme dietary restriction was associated with greater psychosocial impairment in women than in men, whereas excessive exercise was not associated with psychosocial impairment in either women or men. Conclusions: There appear to be few differences between men and women in terms of psychosocial impairment associated with EDB. It may no longer be appropriate to base the development of eating disorder prevention programs on the premise that EDB is primarily a problem of women. Health professionals may be more likely to see more men with EDB in their practices in the future.
    No preview · Article · Dec 2014 · Eating Behaviors
  • Source

    Full-text · Article · Nov 2014 · Journal of Eating Disorders
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: The overvaluation of weight and/or shape (“overvaluation”), a diagnostic criterion for anorexia nervosa and bulimia nervosa, is increasingly supported for inclusion in the Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-5) criteria of binge eating disorder (BED). However, current evidence has been largely confined to adult populations. The current study aims to examine the status of overvaluation among adolescents with loss of control (LOC) eating recruited from a large, population-based sample. Subgroups of female adolescents – LOC eating with overvaluation (n = 30); LOC eating without overvaluation (n = 58); obese no LOC eating (“obese control”) (n = 36); and “normal-weight control” (normal-weight, no LOC eating) (n = 439) – recruited from secondary schools within the Australian Capital Territory (ACT) were compared on measures of eating disorder psychopathology, general psychological distress and quality of life. Participants in the LOC eating with overvaluation subgroup reported significantly higher levels of eating disorder psychopathology than all other groups, while levels did not differ between participants in the LOC eating without overvaluation and obese control subgroups. On measures of distress and quality of life there were no significant differences between LOC eating with and without overvaluation subgroups. Both reported significantly greater distress and quality of life impairment than normal-weight controls. LOC eating with overvaluation participants had significantly higher levels of distress and quality of life impairment than obese controls, whereas scores on these measures did not differ between LOC eating without overvaluation and obese control subgroups. The results suggest that the presence of overvaluation among adolescents with LOC eating indicates a more severe disorder in terms of eating disorder psychopathology, however may not indicate distress and disability as clearly as it does among adults with BED.
    Full-text · Article · Oct 2014 · International Journal of Eating Disorders
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Objectives: To examine the relationships of retirement and reasons for retirement with psychological distress in men and women at the age of 45-79 years. Method: Data from 202,584 Australians participating in the large-scale 45 and Up Study was used. Psychological distress was measured by the Kessler psychological distress scale. Associations between different work status and reasons for retirement with psychological distress were assessed for men and women at different ages using logistic regression. Results: Being fully retired or unemployed was associated with the high levels of psychological distress compared to being in paid work for men and women aged 45-64 (p < 0.0001), and for men aged 65-74 years (p ≤ 0.0014). At the age of 75-79 years, there was no difference in psychological distress between different work statuses. Among retirees, retirement due to ill health, being made redundant or caring duty was associated with the high level of psychological distress. Conclusion: The association between work and mental health underscores the importance of policies and strategies to encourage and enable people to continue in the workforce after age 55, particularly for men. Important reasons for retirement with worse mental health outcomes include redundancy, ill health and needing to care for family or a friend. These circumstances will affect whether a person can continue working and their risk of poor mental health, and both considerations should be addressed in developing approaches for maintaining older workers or assisting them with their retirement transition.
    Full-text · Article · Oct 2014 · Aging and Mental Health
  • Source
    K van Zutven · J Mond · J Latner · B Rodgers
    [Show abstract] [Hide abstract]
    ABSTRACT: Objective We examined the relative importance of physical health status, weight/shape concerns, and binge eating as mediators of the association between obesity and psychosocial impairment in a community sample of women and men.Method Self-report measures of eating disorder features, perceived physical health and psychosocial functioning were completed by a general population sample of women and men classified as obese or non-obese (women: obese=276, non-obese=1220; men: obese=169, non-obese=769). Moderated mediation analysis was used to assess the relative importance of each of the putative mediators in accounting for observed associations between obesity and each outcome measure and possible moderation of these effects by sex.ResultsWeight/shape concerns and physical health were equally strong mediators of the association between obesity and psychosocial impairment. This was the case for both men and women and for each of three measures of psychosocial functioning - general psychological distress, life satisfaction and social support - employed. The effects of binge eating were modest and reached statistical significance only for the life satisfaction measure in men.ConclusionA greater focus on body acceptance may be indicated in obesity prevention and weight-management programs.International Journal of Obesity accepted article preview online, 11 June 2014; doi:10.1038/ijo.2014.100.
    Full-text · Article · Jun 2014 · International journal of obesity (2005)
  • Source
    E Paige · R J Korda · E Banks · B Rodgers
    [Show abstract] [Hide abstract]
    ABSTRACT: Objectives To investigate how results of the association between education and weight change vary when weight change is defined and modelled in different ways. Design Longitudinal cohort study. Participants 60 404 men and women participating in the Social, Environmental and Economic Factors (SEEF) subcomponent of the 45 and Up Study—a population-based cohort study of people aged 45 years or older, residing in New South Wales, Australia. Outcome measures The main exposure was self-reported education, categorised into four groups. The outcome was annual weight change, based on change in self-reported weight between the 45 and Up Study baseline questionnaire and SEEF questionnaire (completed an average of 3.3 years later). Weight change was modelled in four different ways: absolute change (kg) modelled as (1) a continuous variable and (2) a categorical variable (loss, maintenance and gain), and relative (%) change modelled as (3) a continuous variable and (4) a categorical variable. Different cut-points for defining weight-change categories were also tested. Results When weight change was measured categorically, people with higher levels of education (compared with no school certificate) were less likely to lose or to gain weight. When weight change was measured as the average of a continuous measure, a null relationship between education and annual weight change was observed. No material differences in the education and weight-change relationship were found when comparing weight change defined as an absolute (kg) versus a relative (%) measure. Results of the logistic regression were sensitive to different cut-points for defining weight-change categories. Conclusions Using average weight change can obscure important directional relationship information and, where possible, categorical outcome measurements should be included in analyses.
    Full-text · Article · Jun 2014 · BMJ Open
  • [Show abstract] [Hide abstract]
    ABSTRACT: The relationship between comorbidity and psychological distress is well documented, however the mechanism of this association is unclear. We aim to assess the extent to which the association between common chronic conditions and high scores on the Kessler Psychological Distress Scale (K10) measure of psychological distress vary according to comorbid conditions, disability, and sociodemographic circumstances. Analysis of self-reported cross-sectional data from the New South Wales 45 and Up Study, Australia, for 236,508 participants aged 45 years and over, using logistic regression modeling. Self-reported heart attack/angina, other heart disease, stroke, and diabetes were all significantly associated with higher risk of high/very high K10 scores. These associations were attenuated, but remained statistically significant, when comorbidity, disability, and sociodemographic factors were added to the model. Men reporting needing help for daily tasks were nine times as likely to report high/very high K10 scores as those without this need, and women reporting needing help were seven times more likely to have high/very high K10 scores. Heart attack/angina, other heart disease, stroke, and diabetes are all significantly associated with psychological distress. However, these effects are partly explained by other comorbid conditions, limitations on physical functioning, and sociodemographic factors. These findings highlight the importance of developing public health policies that encompass psychological, physiological, and social domains, and provide crucial insights for clinicians in identifying and supporting those people at risk of psychological distress.
    No preview · Article · Jun 2014 · Depression and Anxiety
  • [Show abstract] [Hide abstract]
    ABSTRACT: Stigmatizing attitudes towards eating disorders negatively impacts treatment seeking. To determine the effect of interventions to reduce stigma, a measure of stigma that is simple to implement is required. This study aimed to develop a measure of stigmatizing attitudes and beliefs towards bulimia nervosa (SAB-BN) and evaluate the distribution of beliefs across gender, age, education, and income groups. Participants were 1828 community adults (890 men; 938 women) aged 18-65 sampled from the Australian Electoral Roll responded to a mailed questionnaire. Participants provided demographic information and completed the SAB-BN questionnaire. Five components of stigmatizing attitudes and beliefs were identified; advantages of BN, minimization/low seriousness, unreliability, social distance, and personal responsibility. Stigma was low except on social distance and personal responsibility sub-scales, which indicated negative attitudes toward people with bulimia. Men compared with women and lower compared with higher education and income groups held significantly higher stigmatizing attitudes and beliefs. There were few differences between age groups in stigma. Differences between demographic groups provides evidence for known-groups validity. The SAB-BN questionnaire provides a potentially useful tool for evaluating stigma in relation to BN. Results provide insight into components of stigma and the demographic groups to whom interventions should be targeted. © 2013 Wiley Periodicals, Inc. Int J Eat Disord 2013 (Int J Eat Disord 2013).
    No preview · Article · May 2014 · International Journal of Eating Disorders
  • [Show abstract] [Hide abstract]
    ABSTRACT: The objective of this work was to further examine the status of the overvaluation of weight/shape in binge-eating disorder (BED) by examining correlates of probable BED with and without overvaluation. Subgroups of women – probable BED with overvaluation (n = 37), probable BED without overvaluation (n = 78), obese individuals who reported no binge eating (‘obese controls’) (n = 194), and normal-weight individuals who reported no binge eating (‘healthy controls’) (n = 573) – recruited from a general population sample, were compared on measures of eating disorder psychopathology, general psychological distress, and psychosocial functioning. Women with probable BED with overvaluation reported significantly higher levels of eating disorder psychopathology and general psychological distress, and significantly poorer psychosocial functioning, than those with probable BED without overvaluation. No significant differences on any outcome measures were found between women with probable BED without overvaluation and obese controls. The findings provide additional evidence for the role of overvaluation in indicating disorder severity among individuals with BED and variants of this disorder. Moreover, it highlights the need for further consideration of the status of overvaluation in relation to BED diagnostic criteria.
    No preview · Article · Jan 2014
  • [Show abstract] [Hide abstract]
    ABSTRACT: Understanding attitudes to mental health issues can inform public health interventions. However, low response rates may contribute to nonresponse bias. We examined the effect of a prenotification postcard and a short message (teaser) on response rates to a mailed questionnaire about bulimia nervosa "mental health literacy." Questionnaires were mailed to 3,010 adults (50.6% female and 49.4% male) aged 18-65 years. Procedures were varied according to sending prenotification before the questionnaire and the placement of a teaser on the survey envelope. Outcomes considered were response rate, response time, and cost. The overall response rate was 22.0%. Significant main effects showed higher response rates for the use of prenotification, among female participants, and older participants. A significant interaction of teaser by gender indicated lower response rates for men who received the teaser but not for women. Older participants returned the questionnaire more promptly than younger participants. Females-but not males-who received the teaser were slower to return the questionnaire. Higher response rates for participants receiving the postcard compensated for increased costs, particularly for males and older participants. Response rates to a mental health postal survey can be increased through the use of prenotification.
    No preview · Article · Jan 2014 · Journal of clinical epidemiology

Publication Stats

10k Citations
657.26 Total Impact Points


  • 1994-2015
    • Australian National University
      • • Australian Demographic & Social Research Institute
      • • College of Arts & Social Sciences
      • • National Centre for Epidemiology & Population Health Research
      • • Centre for Mental Health Research
      Canberra, Australian Capital Territory, Australia
  • 2012
    • Institut national d'études démographiques
      Lutetia Parisorum, Île-de-France, France
  • 2004-2006
    • James Cook University
      • Discipline of Medicine
      Townsville, Queensland, Australia
  • 1997
    • ANU College
      Canberra, Australian Capital Territory, Australia