Pub Date : 2025-10-01DOI: 10.2486/indhealth.2025-0068
Nursuhaili Mohd Amin, Hairul Nazmin Nasruddin, Alia Azmi
This paper proposes a novel conceptual framework that integrates Disaster Risk Management (DRM) into Occupational Health Services (OHS) to improve resilience against technological hazards in high-risk industrial sectors. Even though OHS is meant to safeguard the workplace, it lacks systematic management for disaster risks such as chemical spills, industrial fires and toxic releases. To address this gap, the proposed framework synthesizes two internationally recognized models: the WHO's Health Emergency and Disaster Risk Management (Health-EDRM) strategy and the Basic Occupational Health Services (BOHS) model. The integration is structured across three interconnected pillars: (1) Risk Governance and Policy Alignment, (2) Proactive Risk Assessment and Preparedness, and (3) Emergency Response and Resilience-Building. This approach extends the scope of OHS from traditional hazard control and compliance to proactive disaster resilience, offering a new theoretical and practical model tailored for vulnerable and complex industrial environments. In doing so, the framework supports Sustainable Development Goals (SDGs) by enhancing worker protection, business continuity and community-level sustainability. It also lays the foundation for future empirical research and offers actionable guidance for industry leaders and policymakers.
{"title":"Integrating disaster risk management into occupational health services: a framework for technological hazard resilience in high-risk industries.","authors":"Nursuhaili Mohd Amin, Hairul Nazmin Nasruddin, Alia Azmi","doi":"10.2486/indhealth.2025-0068","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0068","url":null,"abstract":"<p><p>This paper proposes a novel conceptual framework that integrates Disaster Risk Management (DRM) into Occupational Health Services (OHS) to improve resilience against technological hazards in high-risk industrial sectors. Even though OHS is meant to safeguard the workplace, it lacks systematic management for disaster risks such as chemical spills, industrial fires and toxic releases. To address this gap, the proposed framework synthesizes two internationally recognized models: the WHO's Health Emergency and Disaster Risk Management (Health-EDRM) strategy and the Basic Occupational Health Services (BOHS) model. The integration is structured across three interconnected pillars: (1) Risk Governance and Policy Alignment, (2) Proactive Risk Assessment and Preparedness, and (3) Emergency Response and Resilience-Building. This approach extends the scope of OHS from traditional hazard control and compliance to proactive disaster resilience, offering a new theoretical and practical model tailored for vulnerable and complex industrial environments. In doing so, the framework supports Sustainable Development Goals (SDGs) by enhancing worker protection, business continuity and community-level sustainability. It also lays the foundation for future empirical research and offers actionable guidance for industry leaders and policymakers.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145206502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.2486/indhealth.2025-0123
Mathura Murugavel, Diane Godeau, Bénédicte Barbotin, Michel Lejoyeux, François Guillon, Aïcha El Khatib
The aim of this work is to identify occupational situations that are at risk and/or encourage alcohol use, whatever the type of consumption. This is a review of the literature in search of articles published between 1989 and August 2019, dealing with the effects of work situations on alcohol consumption. A qualitative analysis was conducted on the articles meeting the selection criteria, and the data were summarised based on the main risk factors identified. There is some evidence supporting work organisation as being at risk of alcohol consumption. This concerns mainly shift work and long-working hours, although the relation with drinking behaviours seems to be conflicting. Social relations and interactions within the workplace may induce (or be at risk of) alcohol consumption, particularly in the case of tolerant standards. The results regarding work stress are contradictory. Data regarding physical workload are scarce. Most studies addressed alcohol consumption as a public health issue, in the labour force, and not as an occupational health issue focused on work situations and conditions. Yet this knowledge may help the occupational physician to question the work environment, in order to prevent this risk on a collective technical level and on an individual case-by-case basis.
{"title":"Workplace situations and alcohol consumption: a review of the literature. Rationale for the occupational physician.","authors":"Mathura Murugavel, Diane Godeau, Bénédicte Barbotin, Michel Lejoyeux, François Guillon, Aïcha El Khatib","doi":"10.2486/indhealth.2025-0123","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0123","url":null,"abstract":"<p><p>The aim of this work is to identify occupational situations that are at risk and/or encourage alcohol use, whatever the type of consumption. This is a review of the literature in search of articles published between 1989 and August 2019, dealing with the effects of work situations on alcohol consumption. A qualitative analysis was conducted on the articles meeting the selection criteria, and the data were summarised based on the main risk factors identified. There is some evidence supporting work organisation as being at risk of alcohol consumption. This concerns mainly shift work and long-working hours, although the relation with drinking behaviours seems to be conflicting. Social relations and interactions within the workplace may induce (or be at risk of) alcohol consumption, particularly in the case of tolerant standards. The results regarding work stress are contradictory. Data regarding physical workload are scarce. Most studies addressed alcohol consumption as a public health issue, in the labour force, and not as an occupational health issue focused on work situations and conditions. Yet this knowledge may help the occupational physician to question the work environment, in order to prevent this risk on a collective technical level and on an individual case-by-case basis.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-23DOI: 10.2486/indhealth.2025-0079
Chieh-Jan Chen, Ching-Mei Hsieh, Sheryl Chen, Albert Chen
The relationship between the employment status and mental health is well established, yet the behavioural mechanisms underlying this association across age groups remain unclear. This study investigates whether artistic leisure moderates the association between employment status and mental health, measured with the 12-item Chinese Health Questionnaire (CHQ-12), using nationally representative survey data from Taiwanese adults aged 18 and above. Participants were categorised into three groups. Descriptive statistics summarised mental health prevalence, and χ2 tests assessed associations across age groups. Hierarchical multivariable logistic regression, adjusted for sociodemographic factors, religious affiliation, financial sufficiency, and physical health, was employed to examine the relationship. The prevalence of good mental health was highest among older adults (84.83%), followed by young (79.25%) and middle-aged adults (78.76%). Artistic leisure significantly moderated the association between employment and mental health in young adults, with those in employment who engaged in artistic activities reporting better outcomes (AOR=4.22, 95% CI: 1.98-8.96). No significant moderating association was found in the older age groups. These findings suggest that employment plays a critical role in the mental well-being of young adults, highlighting the importance of understanding the contexts and motivations behind their engagement in artistic leisure.
{"title":"The relationship between employment status and mental health among adults of different groups in Taiwan: a study with artistic leisure as a moderator.","authors":"Chieh-Jan Chen, Ching-Mei Hsieh, Sheryl Chen, Albert Chen","doi":"10.2486/indhealth.2025-0079","DOIUrl":"https://doi.org/10.2486/indhealth.2025-0079","url":null,"abstract":"<p><p>The relationship between the employment status and mental health is well established, yet the behavioural mechanisms underlying this association across age groups remain unclear. This study investigates whether artistic leisure moderates the association between employment status and mental health, measured with the 12-item Chinese Health Questionnaire (CHQ-12), using nationally representative survey data from Taiwanese adults aged 18 and above. Participants were categorised into three groups. Descriptive statistics summarised mental health prevalence, and χ<sup>2</sup> tests assessed associations across age groups. Hierarchical multivariable logistic regression, adjusted for sociodemographic factors, religious affiliation, financial sufficiency, and physical health, was employed to examine the relationship. The prevalence of good mental health was highest among older adults (84.83%), followed by young (79.25%) and middle-aged adults (78.76%). Artistic leisure significantly moderated the association between employment and mental health in young adults, with those in employment who engaged in artistic activities reporting better outcomes (AOR=4.22, 95% CI: 1.98-8.96). No significant moderating association was found in the older age groups. These findings suggest that employment plays a critical role in the mental well-being of young adults, highlighting the importance of understanding the contexts and motivations behind their engagement in artistic leisure.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145137357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20Epub Date: 2025-02-21DOI: 10.2486/indhealth.2024-0206
Maximilian Peukert, Lea Claus, Lothar Meyer
Fatigue is a longstanding issue in air traffic control (ATC), closely associated with shift work and time-related factors. However, the dynamics of fatigue across morning, evening, and night shifts in an area control center (ACC) remain largely underexplored. This study examined sleep duration and fatigue progression across different shift types. Both objective (three-minute Psychomotor Vigilance Task, PVT-B) and subjective (Stanford Sleepiness Scale, SSS) measures were conducted at the beginning, middle, and end of each shift. Results indicated that pre-shift sleep duration was shortest before night shifts, likely increasing sleep pressure and reducing alertness during the window of circadian low (WOCL). Subjective fatigue remained stable throughout morning shifts but increased towards the end of evening shifts, reflecting circadian influences. Night shifts exhibited peak fatigue during the WOCL, driven primarily by circadian rhythms rather than task load. Objective measures revealed a mid-shift decline in performance, with only partial recovery in the latter half of night shifts. Compared to day shifts, night shifts resulted in significantly higher fatigue levels, underscoring the critical role of circadian rhythms in fatigue dynamics. These findings highlight the need for targeted fatigue mitigation strategies that address circadian vulnerabilities and irregular sleep patterns in ATC shift systems.
{"title":"Subjective and objective fatigue dynamics in air traffic control.","authors":"Maximilian Peukert, Lea Claus, Lothar Meyer","doi":"10.2486/indhealth.2024-0206","DOIUrl":"10.2486/indhealth.2024-0206","url":null,"abstract":"<p><p>Fatigue is a longstanding issue in air traffic control (ATC), closely associated with shift work and time-related factors. However, the dynamics of fatigue across morning, evening, and night shifts in an area control center (ACC) remain largely underexplored. This study examined sleep duration and fatigue progression across different shift types. Both objective (three-minute Psychomotor Vigilance Task, PVT-B) and subjective (Stanford Sleepiness Scale, SSS) measures were conducted at the beginning, middle, and end of each shift. Results indicated that pre-shift sleep duration was shortest before night shifts, likely increasing sleep pressure and reducing alertness during the window of circadian low (WOCL). Subjective fatigue remained stable throughout morning shifts but increased towards the end of evening shifts, reflecting circadian influences. Night shifts exhibited peak fatigue during the WOCL, driven primarily by circadian rhythms rather than task load. Objective measures revealed a mid-shift decline in performance, with only partial recovery in the latter half of night shifts. Compared to day shifts, night shifts resulted in significantly higher fatigue levels, underscoring the critical role of circadian rhythms in fatigue dynamics. These findings highlight the need for targeted fatigue mitigation strategies that address circadian vulnerabilities and irregular sleep patterns in ATC shift systems.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"431-442"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12464669/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143491903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20Epub Date: 2025-03-17DOI: 10.2486/indhealth.2024-0158
Jeehee Min, Hoje Ryu, Seong-Sik Cho, Mo-Yeol Kang
This study investigated the association between work stress and sleep disturbance among Korean workers, focusing on the mediating effects of somatic and cognitive pre-sleep arousal symptoms. Data were derived from the "Korean Work, Sleep, and Health Study (KWSHS)", involving 4,393 participants. Work stress was assessed using the Korean Occupational Stress Scale, and sleep disturbances were measured using the Insomnia Severity Index and Pittsburgh Sleep Quality Index. The Pre-Sleep Arousal Scale was utilized for assessing pre-sleep arousal status. For statistical analyses, the chi-square test, logistic regression analysis, and mediation analysis were used. Mediation analysis revealed that somatic pre-sleep arousal predominantly mediated the relationship between hazardous physical environments and insomnia symptoms (52.5%), while cognitive pre-sleep arousal was the primary mediator for high job demands (48.0%), organizational injustice (48.6%), and job insecurity (46.6%). These findings suggest that somatic and cognitive pre-sleep arousal serve distinct mediating roles in the relationship between specific types of work stress and sleep disturbances.
{"title":"Association between work stress and sleep disturbances: the mediating role of pre-sleep arousal symptoms.","authors":"Jeehee Min, Hoje Ryu, Seong-Sik Cho, Mo-Yeol Kang","doi":"10.2486/indhealth.2024-0158","DOIUrl":"10.2486/indhealth.2024-0158","url":null,"abstract":"<p><p>This study investigated the association between work stress and sleep disturbance among Korean workers, focusing on the mediating effects of somatic and cognitive pre-sleep arousal symptoms. Data were derived from the \"Korean Work, Sleep, and Health Study (KWSHS)\", involving 4,393 participants. Work stress was assessed using the Korean Occupational Stress Scale, and sleep disturbances were measured using the Insomnia Severity Index and Pittsburgh Sleep Quality Index. The Pre-Sleep Arousal Scale was utilized for assessing pre-sleep arousal status. For statistical analyses, the chi-square test, logistic regression analysis, and mediation analysis were used. Mediation analysis revealed that somatic pre-sleep arousal predominantly mediated the relationship between hazardous physical environments and insomnia symptoms (52.5%), while cognitive pre-sleep arousal was the primary mediator for high job demands (48.0%), organizational injustice (48.6%), and job insecurity (46.6%). These findings suggest that somatic and cognitive pre-sleep arousal serve distinct mediating roles in the relationship between specific types of work stress and sleep disturbances.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"478-489"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12464672/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20Epub Date: 2025-03-14DOI: 10.2486/indhealth.2024-0211
Kati Karhula, Janne Halonen, Satu Mänttäri, Anne Punakallio, Sampsa Puttonen, Maria Sihvola, Pihla Säynäjäkangas, Mikael Sallinen
Support is needed for the well-being of nurses and first responders in external crises. We aimed to synthesize the evidence between workload management strategies and well-being of nurses, paramedics, and firefighters during external crises in an umbrella review. The data sources OVID Medline, APA PsycInfo, CINAHL, Web of Science and the Cochrane Library were searched between 1.1.2013-20.6.2023. Two independent reviewers assessed the eligibility of the publications and conducted the data extraction and narrative synthesis. The search identified 1,073 references on nurses and 182 on paramedics and firefighters. Of the 62 full texts, 16 systematic reviews on nurses were included, and of the 13 full texts on paramedics and firefighters, two systematic reviews were included, making a total of 18 systematic reviews. The quality of the publications was predominantly good (83%). Both employee and work-directed strategies were beneficial in supporting employee well-being during external crises. Proactive practical skills training and psychological interventions were found as the most promising employee-directed strategies. The corresponding work-directed strategies were effective communication, providing useful information and adequate working conditions, supportive leadership, and peer support. To support well-being of nurses and first responders during external crises, workload management strategies need to be proactively planned in workplaces.
在外部危机中,护士和急救人员的福祉需要得到支持。我们旨在综合外部危机期间工作量管理策略与护士、护理人员和消防员福祉之间的证据。检索OVID Medline、APA PsycInfo、CINAHL、Web of Science和Cochrane Library,检索时间为1.1.2013-20.6.2023。两名独立审稿人评估了出版物的合格性,并进行了数据提取和叙述综合。搜索发现了1073条关于护士的信息,182条关于护理人员和消防员的信息。在62篇全文中,包括16篇关于护士的系统评价,在13篇关于护理人员和消防员的全文中,包括2篇系统评价,总共有18篇系统评价。出版物的质量以良好为主(83%)。在外部危机期间,员工和工作导向策略都有利于支持员工的幸福感。积极主动的实践技能培训和心理干预是最有前途的员工导向策略。相应的以工作为导向的策略是有效的沟通,提供有用的信息和适当的工作条件,支持性领导和同伴支持。为了在外部危机期间支持护士和急救人员的福祉,需要在工作场所积极规划工作量管理战略。
{"title":"Supporting the well-being of nurses, paramedics, and firefighters during external crises by managing workload: an umbrella review.","authors":"Kati Karhula, Janne Halonen, Satu Mänttäri, Anne Punakallio, Sampsa Puttonen, Maria Sihvola, Pihla Säynäjäkangas, Mikael Sallinen","doi":"10.2486/indhealth.2024-0211","DOIUrl":"10.2486/indhealth.2024-0211","url":null,"abstract":"<p><p>Support is needed for the well-being of nurses and first responders in external crises. We aimed to synthesize the evidence between workload management strategies and well-being of nurses, paramedics, and firefighters during external crises in an umbrella review. The data sources OVID Medline, APA PsycInfo, CINAHL, Web of Science and the Cochrane Library were searched between 1.1.2013-20.6.2023. Two independent reviewers assessed the eligibility of the publications and conducted the data extraction and narrative synthesis. The search identified 1,073 references on nurses and 182 on paramedics and firefighters. Of the 62 full texts, 16 systematic reviews on nurses were included, and of the 13 full texts on paramedics and firefighters, two systematic reviews were included, making a total of 18 systematic reviews. The quality of the publications was predominantly good (83%). Both employee and work-directed strategies were beneficial in supporting employee well-being during external crises. Proactive practical skills training and psychological interventions were found as the most promising employee-directed strategies. The corresponding work-directed strategies were effective communication, providing useful information and adequate working conditions, supportive leadership, and peer support. To support well-being of nurses and first responders during external crises, workload management strategies need to be proactively planned in workplaces.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"414-430"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12464673/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aimed to investigate the circumstances, characteristics, and background factors of mental disorders within the education and learning-support services, which is known for the frequent occurrence of mental disorders from overwork and poor psychosocial work environment. The study analyzed 119 cases of mental disorders and suicides in the education and learning-support services from fiscal years 2010 to 2019 on the database constructed by the Japan Research Center for Overwork-Related Disorders. The results exhibit that of 119 cases, 56 cases (47.1%) involved male employees while 63 cases (52.9%) involved female employees. From fiscal years 2010 to 2019, there were 43 cases of psychological stress related to work among males and 55 among females. The issue of "interpersonal relationship" was significantly higher in the education and learning-support services than in other industrial workers. Within the category of "interpersonal relationship" the specific issue of being "(severely) harassed, bullied, or assaulted" was especially prevalent (10 cases for males and 15 cases for females). Moreover, male employees reported many instances of suicide attempts, and their first attempt tended to lead to a completed suicide. Therefore, it is important to promote measures against harassment, bullying, and suicide in education and learning-support services.
{"title":"Characteristics of mental disorders among education and learning-support workers in 119 compensated cases in Japan.","authors":"Yuki Takahashi, Toru Yoshikawa, Kenji Yamamoto, Masaya Takahashi","doi":"10.2486/indhealth.2024-0101","DOIUrl":"10.2486/indhealth.2024-0101","url":null,"abstract":"<p><p>This study aimed to investigate the circumstances, characteristics, and background factors of mental disorders within the education and learning-support services, which is known for the frequent occurrence of mental disorders from overwork and poor psychosocial work environment. The study analyzed 119 cases of mental disorders and suicides in the education and learning-support services from fiscal years 2010 to 2019 on the database constructed by the Japan Research Center for Overwork-Related Disorders. The results exhibit that of 119 cases, 56 cases (47.1%) involved male employees while 63 cases (52.9%) involved female employees. From fiscal years 2010 to 2019, there were 43 cases of psychological stress related to work among males and 55 among females. The issue of \"interpersonal relationship\" was significantly higher in the education and learning-support services than in other industrial workers. Within the category of \"interpersonal relationship\" the specific issue of being \"(severely) harassed, bullied, or assaulted\" was especially prevalent (10 cases for males and 15 cases for females). Moreover, male employees reported many instances of suicide attempts, and their first attempt tended to lead to a completed suicide. Therefore, it is important to promote measures against harassment, bullying, and suicide in education and learning-support services.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"514-523"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12464670/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143585596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20Epub Date: 2025-03-14DOI: 10.2486/indhealth.2024-0131
Jacques Wels, Rong Fu
Few studies have addressed the relationship between sleep and employment in Japan. We use four waves of the Japan Study of Aging and Retirement (JSTAR) to address the relationship between weekday sleep duration, self-reported sleep quality and four self-reported indicators of sleep quality and employment status (model 1, full sample), working hours and job satisfaction (model 2, working sample) among individuals aged 50 and over (N=7,082). We apply mixed effects models for the linear outcome of sleep duration and cumulative link mixed models for the sleep quality variables, controlling for socio-demographic and health characteristics. In model 1, our findings show that, compared to full-time employees, all categories of workers and non-workers report longer sleep hours. Some sub-groups, such as contract workers, report higher odds of waking up at night or in the early morning, and taking a longer time to fall asleep. In model 2, we find a positive association between working time and sleep hours but including job satisfaction in the model absorbs such a relationship, indicating the job satisfaction somehow reflects working time. Poor job satisfaction is linked to higher odds of experiencing difficulties in four of the five sleep quality measures.
{"title":"Associations of employment status, working time and job satisfaction with sleep duration and sleep quality among the 50+ population in Japan.","authors":"Jacques Wels, Rong Fu","doi":"10.2486/indhealth.2024-0131","DOIUrl":"10.2486/indhealth.2024-0131","url":null,"abstract":"<p><p>Few studies have addressed the relationship between sleep and employment in Japan. We use four waves of the Japan Study of Aging and Retirement (JSTAR) to address the relationship between weekday sleep duration, self-reported sleep quality and four self-reported indicators of sleep quality and employment status (model 1, full sample), working hours and job satisfaction (model 2, working sample) among individuals aged 50 and over (N=7,082). We apply mixed effects models for the linear outcome of sleep duration and cumulative link mixed models for the sleep quality variables, controlling for socio-demographic and health characteristics. In model 1, our findings show that, compared to full-time employees, all categories of workers and non-workers report longer sleep hours. Some sub-groups, such as contract workers, report higher odds of waking up at night or in the early morning, and taking a longer time to fall asleep. In model 2, we find a positive association between working time and sleep hours but including job satisfaction in the model absorbs such a relationship, indicating the job satisfaction somehow reflects working time. Poor job satisfaction is linked to higher odds of experiencing difficulties in four of the five sleep quality measures.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"465-477"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12476939/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143639563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-20Epub Date: 2025-03-04DOI: 10.2486/indhealth.2024-0171
Jeehee Min, Min-Seok Kim, Dong-Wook Lee, Seong-Sik Cho, Mo-Yeol Kang
This study investigates how household income levels and satisfaction with income impact the relationship between long working hours and self-rated health (SRH) among Korean workers. We analysed data from the Korean Labour & Income Panel Study spanning 2018 to 2022, including 8,954 to 10,079 wage workers annually. Weekly working hours and SRH were the primary variables, with equivalized household income levels classified into quartiles. A generalised estimating equation was used to assess the relationship between long working hours and poor SRH, adjusted for demographic and health-related factors. Subgroup analyses were conducted based on household income level and satisfaction. Long working hours were generally associated with poor SRH (OR 1.30, 95% CI 1.10-1.54) in unadjusted model, particularly among higher-income groups (OR 1.46, 95% CI 1.05-2.01 for Q4) after adjustment for covariates. However, no significant association was found for lower-income groups. When stratified by income satisfaction, longer working hours were significantly associated with poor SRH only in income-satisfied individuals among higher-income group. The health effects of long working hours may differ according to household income levels and satisfaction. Policy interventions should consider both work hour reductions and income adequacy to improve worker health.
本研究探讨家庭收入水平与收入满意度如何影响韩国工人长时间工作与自评健康(SRH)之间的关系。我们分析了2018年至2022年韩国劳动和收入小组研究的数据,其中包括每年8,954至10,079名工薪阶层。每周工作时间和SRH是主要变量,同等家庭收入水平分为四分位数。使用一个广义估计方程来评估长工作时间与低性健康和生殖健康之间的关系,并根据人口统计学和健康相关因素进行了调整。根据家庭收入水平和满意度进行亚组分析。在未调整的模型中,长时间工作通常与较差的SRH相关(OR 1.30, 95% CI 1.10-1.54),特别是在调整协变量后的高收入群体中(OR 1.46, 95% CI 1.05-2.01)。然而,在低收入群体中没有发现显著的关联。当按收入满意度分层时,较长的工作时间仅在高收入群体中收入满意的个体中与较差的SRH显著相关。长时间工作对健康的影响可能因家庭收入水平和满意度而异。政策干预应考虑减少工作时间和收入是否充足,以改善工人健康。
{"title":"Paradox of long working hours: how income levels and satisfaction modify health outcomes.","authors":"Jeehee Min, Min-Seok Kim, Dong-Wook Lee, Seong-Sik Cho, Mo-Yeol Kang","doi":"10.2486/indhealth.2024-0171","DOIUrl":"10.2486/indhealth.2024-0171","url":null,"abstract":"<p><p>This study investigates how household income levels and satisfaction with income impact the relationship between long working hours and self-rated health (SRH) among Korean workers. We analysed data from the Korean Labour & Income Panel Study spanning 2018 to 2022, including 8,954 to 10,079 wage workers annually. Weekly working hours and SRH were the primary variables, with equivalized household income levels classified into quartiles. A generalised estimating equation was used to assess the relationship between long working hours and poor SRH, adjusted for demographic and health-related factors. Subgroup analyses were conducted based on household income level and satisfaction. Long working hours were generally associated with poor SRH (OR 1.30, 95% CI 1.10-1.54) in unadjusted model, particularly among higher-income groups (OR 1.46, 95% CI 1.05-2.01 for Q4) after adjustment for covariates. However, no significant association was found for lower-income groups. When stratified by income satisfaction, longer working hours were significantly associated with poor SRH only in income-satisfied individuals among higher-income group. The health effects of long working hours may differ according to household income levels and satisfaction. Policy interventions should consider both work hour reductions and income adequacy to improve worker health.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"443-450"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12476937/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In 2002, Daikin Industries' Yodogawa Plant (DIYP) in Settsu City in Japan had contaminated drinking water in Hanshin area with (PFOA), leading to the complete cessation of PFOA production in 2012. In 2023, local residents conducted a voluntary Blood Monitoring Campaign with 1,182 general residents. Blood monitoring was also conducted for former or current workers from DIYP and farming residents in Settsu City. Serum PFOA concentrations determined by gas chromatography with mass spectrometry [number: ng/ml: median (25th-75th percentile)] were as follows: former and current workers [N=7: 192.6 (23.3-596.6)] >farming residents [N=5: 70.2 (50.4-98.8)] >general residents [N=1182: 5.0 (3.3-7.0)] with significant differences (Kruskal-Wallis test, p<0.001). In a study, 4 out of 5 farming residents showed a serum PFOA decline (half-life: 2.2 yr, 95% CI: 1.4-4.6) after stopping local agricultural product consumption. However, 3 former workers exhibited no decrease over 0.8-0.9 yr. An investigation found that 5 of the 7 subjects were likely exposed to dust from the polymerization of tetrafluoroethylene or handling its particulate matters, with 3 showing Interstitial Lung Disease (ILD) signs. This suggests PFOA-laden dust may delay excretion and contribute to ILD, though the mechanistic link remains unclear, requiring further research.
{"title":"High serum perfluorooctanoic acid (PFOA) concentrations and interstitial lung disease in former and current workers in a fluorochemical company.","authors":"Kunio Kanetani, Kenji Nakamura, Kouji H Harada, Hideaki Akihisa, Tamiki Oshima, Hiromi Ogata, Akio Koizumi","doi":"10.2486/indhealth.2025-0009","DOIUrl":"10.2486/indhealth.2025-0009","url":null,"abstract":"<p><p>In 2002, Daikin Industries' Yodogawa Plant (DIYP) in Settsu City in Japan had contaminated drinking water in Hanshin area with (PFOA), leading to the complete cessation of PFOA production in 2012. In 2023, local residents conducted a voluntary Blood Monitoring Campaign with 1,182 general residents. Blood monitoring was also conducted for former or current workers from DIYP and farming residents in Settsu City. Serum PFOA concentrations determined by gas chromatography with mass spectrometry [number: ng/ml: median (25th-75th percentile)] were as follows: former and current workers [N=7: 192.6 (23.3-596.6)] >farming residents [N=5: 70.2 (50.4-98.8)] >general residents [N=1182: 5.0 (3.3-7.0)] with significant differences (Kruskal-Wallis test, p<0.001). In a study, 4 out of 5 farming residents showed a serum PFOA decline (half-life: 2.2 yr, 95% CI: 1.4-4.6) after stopping local agricultural product consumption. However, 3 former workers exhibited no decrease over 0.8-0.9 yr. An investigation found that 5 of the 7 subjects were likely exposed to dust from the polymerization of tetrafluoroethylene or handling its particulate matters, with 3 showing Interstitial Lung Disease (ILD) signs. This suggests PFOA-laden dust may delay excretion and contribute to ILD, though the mechanistic link remains unclear, requiring further research.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"490-502"},"PeriodicalIF":1.6,"publicationDate":"2025-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12476936/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}