Akihito Shimazu

Akihito Shimazu
Keio University, Kanagawa, Japan · Faculty of Policy Management

PhD

About

187
Publications
170,502
Reads
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5,712
Citations
Additional affiliations
April 2019 - present
Keio University
Position
  • Professor
April 2017 - March 2019
Kitasato University
Position
  • Professor
October 2006 - March 2017
The University of Tokyo
Position
  • Professor (Associate)
Education
April 1994 - March 1996
Waseda University
Field of study
  • Psychology
April 1994 - June 2000
Waseda University
Field of study
  • Psychology
April 1989 - March 1993
Waseda University
Field of study
  • Psychology

Publications

Publications (187)
Article
Full-text available
Shaping off-job life is becoming increasingly important for workers to increase and maintain their optimal functioning (i.e., feeling and performing well). Proactively shaping the job domain (referred to as job crafting) has been extensively studied, but crafting in the off-job domain has received markedly less research attention. Based on the Inte...
Article
Full-text available
Introduction Workplace environment, especially psychosocial factors at work such as job strain, workplace social support, and shift work, may affect the menstrual abnormalities and fertility of female workers. However, the association between psychosocial factors at work and menstrual abnormalities or fertility is not well understood. To address th...
Article
Full-text available
Objectives: The current study aimed to validate the Japanese version of the Dutch Boredom Scale (DUBS-J), a new boredom scale that comprehensively assesses employees' emotional, cognitive, and behavioral responses to low-stimulus work situations. Methods: The translated and back-translated DUBS was administered via an internet survey to 1358 Jap...
Preprint
Objective This systematic review aimed to evaluate the association between psychosocial factors at work and menstrual abnormalities or fertility by collecting the literature that had utilized a longitudinal or prospective cohort design. Data sources MEDLINE, EMBASE, PsycINFO, PsycARTICLES, and Japan Medical Abstracts Society electronic databases w...
Article
Full-text available
Objectives: This study aimed to examine the reliability and validity of the Japanese version of the eight-item CREW Civility Scale which measures workplace civility norms and compare the civility scores among various occupations. Methods: A longitudinal study included all employees in a social care organization (N = 658) and a cross-sectional st...
Preprint
Background Compared to the numerous reports on mental health outcomes of workplace bullying victims, research on organizational outcomes of witnesses and physical health outcomes of victims and witnesses is scarce. Therefore, the purpose of this study was to investigate the relationship between bullying victimization and witnessing and various phys...
Article
Objective: This study reports a randomized controlled trial of the effect of a job crafting intervention program on work performance and job crafting (as secondary outcomes) among Japanese employees. Methods: Participants who satisfied the inclusion criteria were randomly allocated to an intervention (n = 138) or a control group (n = 143). Outco...
Article
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Objective To investigate an association between quality-adjusted life years (QALY) and work-related stressors (job strain, effort/reward imbalance, and poor support from supervisor and coworkers), and estimate loss in QALY caused by these stressors. Methods A cross-sectional study investigated data from a third-wave survey (in December 2017) of a...
Article
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Objectives: This study comprised a randomized controlled trial to examine the effect of internet-based attention bias modification (iABM) on reducing workers' anxiety. Methods: In total, 300 eligible participants were randomized according to sex and age; 180 were assigned to the intervention group and 120 to the control group. The word stimuli u...
Article
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Background: Good social climate and high work engagement are important factors affecting outcomes in healthcare settings. This study observed the effects of a program called Civility, Respect, and Engagement in the Workplace (CREW) on social climate and staff work engagement in a psychiatric ward of a Japanese hospital. Methods: The program comp...
Preprint
Full-text available
Introduction: Menstrual abnormalities, such as menstrual cycle disorders or related symptoms (e.g., pelvic pain, premenstrual syndrome [PMS], menopausal symptoms), affect female workers’ quality of life and work capacity. The fertility of female workers is also a worldwide concern. However, the association between psychosocial factors at work and m...
Article
Aim This study aimed to develop a Japanese version of the Caregiving Interface Work Scale (J‐CIWS) for use with employed Japanese family caregivers. Methods Permission was obtained from the developer of the original CIWS. The CIWS contains 20 items: 10 measuring care interface work (CIW) and 10 measuring work interface care (WIC). Responses are me...
Article
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Objectives: This study aimed to conduct a systematic review and meta-analysis of randomized controlled trials (RCTs) to improve subjective well-being (SWB), including evaluative, hedonic, and eudemonic well-being, and the mental component of quality of life (QOL) of working population. Methods: A literature search was conducted, using PubMed, Embas...
Chapter
This chapter provides an overview of the history and current status of mental health and mental health care in Japan in the last 50 years. One in 37 people currently receives treatment for any mental disorder, while one in 20 people have experienced a common mental disorder in the past year. Prevalence of mental disorders may not have increased sig...
Article
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This study examines how working parents’ work attitudes (i.e., workaholism and work engagement) are associated with their child’s psychological well-being. Based on the Spillover-Crossover model (SCM), we hypothesize that (a) work-to-family spillover (i.e., work-to-family conflict and facilitation) and (b) employee happiness will sequentially media...
Article
Full-text available
The current study aimed to validate the Japanese version of the Burnout Assessment Tool (BAT-J), a new burnout measure. We conducted an Internet survey to confirm the validity and reliability of the BAT-J, using registered monitors from a Japanese survey company. The first-wave survey was conducted in May 2018, with 1,032 monitors. Of these, 498 pa...
Article
Full-text available
The aim of this study was to investigate the measurement invariance of the Burnout Assessment Tool (BAT) across seven cross-national representative samples. In this study, burnout was modeled as a second-order factor in line with the conceptual definition as a syndrome. The combined sample consisted of 10,138 participants from countries in Europe a...
Article
Full-text available
Objectives We examined the association of workplace social capital (WSC), including structural and cognitive dimensions, with refraining from seeking medical care (RSMC) among Japanese employees. Design One-year prospective cohort study. Setting and participants We surveyed 8770 employees (6881 men and 1889 women) aged 18–70 years from 12 firms i...
Article
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Objective: This study aimed to determine the influence of participatory workplace environmental improvement program on reducing job stress and workers' psychological distress at small enterprises (i.e., less than 10 employees). Furthermore, this study aimed to clarify important factors for success of this program as well. Methods: The model prog...
Preprint
Full-text available
BACKGROUND Work engagement is important for employee’s well-being and work performance. However, no intervention study has investigated the effect of eMental Health intervention on work engagement among workers in low- and middle-income countries (LMICs). OBJECTIVE The aim of the study was to examine the effects of the newly developed smartphone-b...
Article
Full-text available
Background Work engagement is important for employee well-being and work performance. However, no intervention study has investigated the effect of an eMental Health intervention on work engagement among workers in low- and middle-income countries (LMICs). Objective The aim of the study was to examine the effects of a newly developed smartphone-ba...
Article
Full-text available
Objectives: We prospectively examined the combined effect of high stress (i.e., being under great work-related stress), as defined in the Japanese Stress Check Program manual using the Brief Job Stress Questionnaire (BJSQ), and job dissatisfaction on long-term sickness absence lasting 1 month or more. Methods: Participants were 7,343 male and 7,344...
Article
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Mount Ontake in Nagano Prefecture, Japan erupted on 27 September 2014. Many police officers were called in for duty as a disaster-support task force. We investigated the association between the peritraumatic situation and posttraumatic stress disorder (PTSD) symptoms in these police officers. In January 2015, a health survey (OHS) on disaster stres...
Article
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People with stressful situations tend to experience lower psychological well-being highlighting the importance of involvement in activities or strategies that have the potential to promote recovery after stressful work situations. This study aimed to validate the Nepalese version of the Recovery Experience Questionnaire (REQ-N), which evaluates how...
Article
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Objectives: To preliminarily determine the effects of an Internet-based cognitive behavioral therapy program for the stress management of new graduate nurses on improving depressive symptoms and other psychological outcomes using a pre-post experimental design. Methods: A 6-week, six-lesson Internet-based cognitive behavioral therapy program was de...
Article
Full-text available
Objective The current randomized controlled trial investigated the effectiveness of a job crafting intervention program on work engagement as the primary outcome and job crafting as the secondary outcome among Japanese employees.Methods Participants who met the inclusion criteria were randomly assigned to an intervention group (n = 138) or a contro...
Article
Full-text available
Background: Although several studies have examined the association between occupational stress and turnover, these studies relied on cross-sectional designs, subjects' self-report, healthcare workforce, or small sample sizes. This study aimed to confirm whether occupational stress increases the risk of turnover in a large-scale prospective cohort...
Article
In Table 2, Mean and SD were opposite between the intervention group and the wait-list control group. In Table 3, there was a mistake in the annotation: the number of the intervention group was 142. The corrected Table 2 and Table 3 are presented below. We apologize for any inconvenience that this may have caused. *Important errors made by the auth...
Article
Full-text available
Objectives The present study investigated the reliability and validity of a newly developed Vietnamese version of the 9‐item Utrecht Work Engagement Scale (UWES‐9‐V) in a sample of hospital nurses in Hanoi, Vietnam. Methods The UWES‐9 was translated into Vietnamese following a standard procedure. A survey was conducted of 949 registered nurses in...
Article
Full-text available
Objective: The aim of the current study was to validate the Japanese version of the family supportive supervisor behaviors (FSSB-J) measure. FSSB is conceptualized as a multidimensional, superordinate construct constituted of four dimensions: emotional support, instrumental support, role modeling behaviors, and creative work-family management. Me...
Article
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Recent studies have shown that microRNAs (miRNAs) play a role as regulators of neurodevelopment by modulating gene expression. Altered miRNA expression has been reported in various psychiatric disorders, including schizophrenia. However, the changes in the miRNA expression profile that occur during the initial stage of schizophrenia have not been f...
Article
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Objectives: To provide a range of standard evidence-informed recommendations for the primary prevention of mental health problems at work. Methods: Occupational health experts and practitioners evaluated systematic reviews of primary-prevention measures for occupational mental health. A series of consensus meetings were held with the intent of deve...
Article
We sought to verify the reliability and validity of the Japanese version of the Utrecht Work Engagement Scale for Students (UWES‐S‐J). We examined 824 university students. We calculated the goodness of fit for a single‐factor model and the three‐factor model. The fit to the data was better for the three‐factor than for the single‐factor model, but...
Article
Although the eudemonic perspective seems to be a promising in considering vocational identity among working population, well-being at work has been discussed primarily in terms of subjective/hedonic well-being. This study aimed to develop a new tool to measure eudemonic well-being at work and investigate its validity in a collectivist culture. Two...
Article
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Introduction The world’s population is rapidly ageing, and health among older people is thus an important issue. Several previous studies have reported an association between adverse psychosocial factors at work before retirement and postretirement health. The objective of this systematic review and meta-analysis is to examine the association betwe...
Article
Full-text available
Background: Using a one-year prospective design, we examined the association of job dissatisfaction with long-term sickness absence lasting one month or more, before and after adjusting for psychosocial work environment (i.e., quantitative job overload, job control, and workplace social support) in Japanese employees. Methods: We surveyed 14,687 em...
Article
Full-text available
This study aims to provide an integrated perspective on job crafting and its antecedents through the exploration of the joint effects of individual-level and team-level job crafting on employee work engagement. Drawing on conservation of resources (COR) theory, we propose that engaging in job crafting behaviors is promoted by the presence of job-re...
Article
Full-text available
Objectives The aims of the study were to investigate the association between working hours, work engagement, and work productivity, and to examine if work engagement moderates the influence of working hours on work productivity. Methods We used cross‐sectional data from the Japanese occupational cohort survey, which involved 2093 employees in a ma...
Book
「レジリエンス」とは,「しなやかな心」という意味を持ち,挫折や困難な状況,トラウマなどを経験した後に,元の状態まで回復すること,さらにその経験を通して一層人間として成長し,より健康で生産的な状態になれる能力やスキルのことを指す。現代のストレス社会を生き抜くために,働く人に必要なスキルこそ「レジリエンス」ではないだろうか? 本書では,毎日いきいきと健康に働き続けるために,職場という環境の中でどのようにレジリエンスをはぐくむべきか,その理論から実践までを,働き方改革,健康経営,ストレスチェックなど15の視点から,産業保健を含むさまざまな分野の第一人者たちが解説。また国内だけでなく,ロンドン五輪を成功に導いたロンドン交通局職員のレジリエンスを高めた事例や,欧州の多様な働き方とウェルビーイングに関す...
Article
Full-text available
Most studies report a positive relationship of work engagement with health and job performance, but, occasionally, a "dark side of engagement" has also been uncovered. The current study examined two hypotheses: whether work engagement has (1) a U-shaped curvilinear relation with psychological distress and (2) an inverted U-shaped curvilinear relati...
Article
Full-text available
In industrialized countries, the turnover rate of preschool workers is extremely high and now represents a social problem. Consequently, it has become important to promote stable early care and educational environments for this population. Several factors related to working environments are known to affect turnover intention; however, the specific...
Article
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This study examined whether particular recovery activities after work have a positive or negative effect on employee recovery from work (i.e., cognitive, emotional, and physical detachment) and sleep quality. We used a two-wave panel study of 230 health care employees which enabled looking at both short-term and long-term effects (i.e., two-year ti...
Article
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Objectives. Although well-being at work is important for occupational health, multi-dimensional workplace well-being measures do not exist for Japanese workers. The purpose of this study was to investigate the validity of the Japanese version of the Workplace PERMA-Profiler. Methods. Japanese workers completed online surveys at baseline (N = 310) a...
Article
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Introduction Chronic inflammation may be a mediator for the development of cardiovascular disease (CVD), metabolic diseases and psychotic and neurodegenerative disorders. Meta-analytic associations between work-related psychosocial factors and inflammatory markers have shown that work-related psychosocial factors could affect the flexibility and ba...
Article
Background Work‐related psychosocial factors have been associated with metabolic syndrome. However, no systematic reviews or meta‐analyses have evaluated this association. Methods A systematic literature search was conducted, using PubMed, Embase, PsycINFO, PsycARTICLES and the Japan Medical Abstracts Society. Eligible studies included those that...
Article
Full-text available
This study sought to validate the Japanese version of the Survey Work–Home Interaction – NijmeGen, the SWING, which assesses multi-dimensional work–family interaction by differentiating between the direction and quality of influence. We translated the SWING into the Japanese language, the SWING-J. A back-translation procedure confirmed that the tra...
Article
Full-text available
Objective The aim of this study was to investigate the long-term impact of being bullied at school on current psychological distress and work engagement in adulthood among Japanese workers. We hypothesized that workers who had been bullied at school could have higher psychological distress and lower work engagement compared to those who had not bee...
Article
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Objectives: This retrospective cohort study evaluated the impact of the Stress Check Program, a recently introduced national policy and program aimed at reducing psychological distress among Japanese workers. Methods: A baseline survey was conducted from November 2015 to February 2016, the period when Japan began enforcing the Stress Check Progr...
Article
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Background: Previous randomized controlled trials (RCTs) have shown a significant intervention effect of internet-based computerized cognitive behavioral therapy (iCBT) on improving nonclinical depressive symptoms among healthy workers and community residents in a primary prevention setting. Time preference is one's relative valuation for having a...
Article
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The effects of Pokémon GO, a new mobile game application which utilizes augmented reality, on risky behavior and health have already been discussed in anecdotal evidence. However, there have been no studies about its effects on mental health. This study investigated the relationships between Pokémon GO and psychological distress from an existing wo...
Article
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This study focuses on individual differences and the demand-support-control model in relation to workaholism. We hypothesized that unfavorable working conditions (high job demands, low job control/decision latitude, and low social support at work) and individual differences concerning sleep/wake-related variables (high flexibility, high morningness...
Article
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Objectives On December 1, 2015, the Japanese government launched the Stress Check Program, a new occupational health policy to screen employees for high psychosocial stress in the workplace. As only weak evidence exists for the effectiveness of the program, we sought to estimate the risk of stress-associated long-term sickness absence as defined in...
Article
Full-text available
The current study introduces an ultra-short, 3-item version of the Utrecht Work Engagement Scale. Using five national samples from Finland (N = 22,117), Japan (N = 1,968), the Netherlands (N = 38,278), Belgium/Flanders (N = 5,062), and Spain (N = 10,040) its internal consistency and factorial validity vis-à-vis validated measures of burnout, workah...
Article
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Introduction Metabolic syndrome is an important public health target because of its high prevalence worldwide. Work-related psychosocial factors have been identified as determinants of metabolic syndrome components. However, there have been no systematic reviews or meta-analyses conducted to evaluate the relationship between work-related psychosoci...
Article
Full-text available
The distinctiveness between work engagement and burnout has long been an issue of debate. To address this issue, we use a recently developed technique by Yu et al. (2016) to specify and test a meta-analytic structural equation model (MASEM) which accounts for the non-independence between engagement and burnout as well as the simultaneous effects of...
Article
Background: Communication between nurse managers and nurses is important for mental health of hospital nurses. Objective: The aim of the present study was to investigate the relationship between managers' communication behaviors toward nurses, and work engagement and psychological distress among hospital nurses using a multilevel model. Design:...
Article
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Objectives: Although incivility is a common interpersonal mistreatment and associated with poor mental health, there are few studies about it in Asian countries. The aim of this study was to develop the Japanese version of the modified Work Incivility Scale (J-MWIS), investigate its reliability and validity, and reveal the prevalence of incivility...
Article
Background This study examined the prospective association of workplace social capital (WSC) with major depressive episode (MDE) among Japanese employees. Methods A 3-year prospective cohort study was conducted among 1058 employees from a private think-tank company who participated in a baseline survey; after excluding those with MDE in the past 1...
Article
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Objectives This study of Japanese dual-earner couples examined the impact of family and job demands on one’s own and one’s partner’s fatigue as well as gender differences in these effects. Methods A total of 2,502 parents (1,251 couples) were surveyed using a self-administered questionnaire. A crossover model was tested using structural equation m...
Article
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Background Job crafting, an employee-initiated job design/redesign, has become important for employees’ well-being. However, most studies on the relationship between job crafting and employees’ well-being have been conducted in western countries; thus, it is unclear whether job crafting can be effectively applied to Asian cultures, such as Japan, w...
Article
Occupational mental health activities can be categorized into three strategies: primary, secondary, and tertiary preventions. Self-care training is one of the primary prevention activities, which aims to increase individual psychological resources such as coping. This article first refers to strategies for effective self-care training in occupation...