Journal of Occupational Health最新文献

{"title":"Cardiovascular disease risk factor prevalence among police officials: findings from a cross-sectional study in Kerala, India.","authors":"J Greeshma, G K Mini, A Marthanda Pillai, Vilma Irazola","doi":"10.1093/joccuh/uiae025","DOIUrl":"10.1093/joccuh/uiae025","url":null,"abstract":"<p><strong>Objectives: </strong>Police officials' stressful and physically demanding activities reportedly increase the risk of cardiovascular disease (CVD). This study explored the prevalence of CVD risk factors such as hypertension, diabetes, tobacco use, alcohol consumption, and overweight among police officials in Kerala, India.</p><p><strong>Methods: </strong>A cross-sectional study was conducted among 255 police officials in selected police stations in the Thiruvananthapuram district, Kerala. The World Health Organization STEPs questionnaire for noncommunicable disease risk factor surveillance was used to collect information. We collected STEP 1 (demographics, tobacco use, alcohol consumption, physical activity, and diet) and STEP 2 (weight, height, and blood pressure) data. Multivariable analysis was done to identify factors associated with hypertension.</p><p><strong>Results: </strong>The mean age of participants was 42 years (range: 30-55 years) and the majority were men (83.5%). Current use of tobacco or alcohol was reported by 22.7% of the participants. The prevalence of overweight was 64.7% and physical inactivity was 35.1%. Self-reported prevalence of diabetes was 7.5% and of hyperlipidemia was 11.4%. Hypertension prevalence was 40.4%. Among hypertensives, 35.9% were aware, 20.4% were treated, and 5.8% had controlled blood pressure. The control rate was 28.6% among treated hypertensives. When controlling for age, diabetes (odds ratio [OR]: 3.57; 95% CI: 1.16-10.90), and overweight (OR: 1.88; 95% CI: 1.06-3.35) participants were more likely to have hypertension compared with their counterparts.</p><p><strong>Conclusions: </strong>Police officers have a high prevalence of significant CVD risk factors such as hypertension, physical inactivity, and being overweight. These findings reinforce the need for interventions addressing the above risk factors to prevent CVD in this population.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11195579/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140876694","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}

{"title":"Association between physical activity patterns of working-age adults and social jetlag, depressive symptoms, and presenteeism.","authors":"Jaehoon Seol, Rina So, Fumiko Murai, Tomoaki Matsuo","doi":"10.1093/joccuh/uiae068","DOIUrl":"10.1093/joccuh/uiae068","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to evaluate the association of physical activity with social jetlag, depressive symptoms, and presenteeism.</p><p><strong>Methods: </strong>This cross-sectional study included 8247 working-age adults (females, 44.6%; age, 20-64 years). Social jetlag was defined as the absolute difference between the midpoint of bedtime and wake time on workdays and free days. Depression symptoms were assessed using the Center for Epidemiologic Studies Depression Scale, and presenteeism was evaluated using the Work Functioning Impairment Scale. Exercise habits were classified into 4 groups based on the World Health Organization guidelines: nonactive (NA; n = 4223), insufficiently active (IA; n = 3009: exercise below guideline levels), weekend warriors (WW; n = 220: exercise 1-2 times per week meeting guideline levels), and regularly active (RA; n = 793: exercise at least 3 d/wk meeting guideline levels). Using multiple and Poisson regression analyses, we examined the association between exercise habits and each outcome.</p><p><strong>Results: </strong>Social jetlag, depression, and presenteeism were more favorable with shorter sedentary times and longer durations of moderate- and vigorous-intensity exercise. Compared with the RA group, the NA group had a significantly higher prevalence of social jetlag (prevalence ratio [PR] = 1.30), depression (PR = 1.31), and presenteeism (PR = 1.35). The IA group had a significantly higher prevalence of depression (PR = 1.33) and presenteeism (PR = 1.38).</p><p><strong>Conclusions: </strong>Exercising with a certain frequency and intensity may help prevent symptoms of depression and social jetlag, and consequently prevent presenteeism.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11643347/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142622036","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}

{"title":"Associations of physical activity and sedentary time with psychological distress among Japan self-defense forces personnel dispatched overseas: a prospective cohort study.","authors":"Norihito Noguchi, Kotaro Shoji, Hiroyuki Sasai, Masato Kitano, Fumiko Waki, Naoki Edo, Taku Saito, Takehito Sawamura, Masanori Nagamine","doi":"10.1093/joccuh/uiae069","DOIUrl":"10.1093/joccuh/uiae069","url":null,"abstract":"<p><strong>Objectives: </strong>Physical inactivity and sedentary time can worsen mental health; however, their relationship remains elusive, and related evidence among workers with overseas assignments is limited. Therefore, this study aimed to investigate the relationship between changes in physical activity and sedentary time and explored the subsequent risk of psychological distress among Japan Self-Defense Forces personnel.</p><p><strong>Methods: </strong>This prospective study enrolled male Japan Self-Defense Forces personnel dispatched to the Republic of Djibouti from May 2018 to June 2019. Psychological distress data were collected before and after overseas deployment. Physical activity and sedentary time data were obtained using the Global Physical Activity Questionnaire. Psychological distress was assessed using the General Health Questionnaire 30. Mixed-effects modeling was performed to test associations between psychological distress and changes in sedentary time and physical activity.</p><p><strong>Results: </strong>The cohort comprised 334 male Japan Self-Defense Forces personnel. The prevalence of psychological distress after deployment was 12.6%. The interaction of sedentary time and time was significantly associated with a greater psychological distress risk. Psychological distress was greater when sedentary time showed a large increase than when sedentary time showed less change during deployment. A greater increase in work-related physical activity from before to during deployment was associated with decreased psychological distress.</p><p><strong>Conclusions: </strong>These findings suggest that a greater increase in sedentary time from before deployment to during deployment is associated with increased psychological distress after deployment. Healthcare professionals should recommend reducing sedentary time to improve mental health, especially after overseas deployments.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11656570/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142647385","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}

{"title":"Development of the Job-Related Uncertainty Stress Scale for Platform Workers.","authors":"Yonglin Zheng, Francis Cheung, Hongchen Luo, Heng Xu, Chen Li, Dan Wu","doi":"10.1093/joccuh/uiae074","DOIUrl":"10.1093/joccuh/uiae074","url":null,"abstract":"<p><strong>Objectives: </strong>This study reports the development of the Job-Related Uncertainty Stress Scale for Platform Workers (JUSSPW) and examines its reliability and validity.</p><p><strong>Methods: </strong>The research was conducted in 2 phases. In Study 1, item analysis and exploratory factor analysis were conducted on data from 343 platform riders (males: 321; females: 22; mean (SD) age: 27.03 (6.67) years) in Guangzhou, China. In Study 2, an additional 391 platform riders (males: 328; females: 63; mean (SD) age: 30.36 (4.49) years) were recruited. This phase involved conducting confirmatory factor analysis (CFA) and assessing criterion-related validity by using the Uncertainty Stress Scale (USS-4), Maslach Burnout Inventory (MBI), and Job Satisfaction Inventory (JSI).</p><p><strong>Results: </strong>The JUSSPW scale comprises 8 items under a unidimensional structure, covering 4 perspectives: work environment, interpersonal relationships, industry-specific characteristics, and personal development prospects; it explained 71.07% of the total variance. CFA results indicated that this 1-factor model provided a good fit (χ2/df = 2.681, Root Mean Square Error of Approximation (RMSEA) = 0.066, Comparative Fit Index (CFI) = 0.987, Incremental Fit Index (IFI) = 0.987, Goodness of Fit Index (GFI) = 0.964, Tucker-Lewis Index (TLI) = 0.982). This scale also demonstrated good convergent (Average Variance Extracted (AVE) = 0.668, Composite Reliability (CR) = 0.941) and criterion validity (area under the curve = 0.935). The total score of JUSSPW was significantly positively correlated with the USS-4 and Maslach Burnout Inventory-Emotional Exhaustion (MBI-EE) scores, and remarkably negatively correlated with the JSI scores. Cronbach α and split-half reliability were .939 and 0.935, respectively.</p><p><strong>Conclusions: </strong>These results suggest that this scale shows good reliability and validity and can be used as a sound measure to capture platform workers' job-related uncertainty stress. Limitation and implications are discussed.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11742387/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142829139","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}

{"title":"Organizational and occupational health issues with working remotely during the pandemic: a scoping review of remote work and health.","authors":"Lynnette-Natalia Lyzwinski","doi":"10.1093/joccuh/uiae005","DOIUrl":"10.1093/joccuh/uiae005","url":null,"abstract":"<p><strong>Background: </strong>Stay-at-home orders during the COVID-19 global pandemic created unprecedented challenges for workers whose work was transferred to the home setting. Little is presently known about the benefits and the challenges associated with global remote work on well-being and mental health, work-life balance, job satisfaction, productivity, home office adaptability, and gender equality.</p><p><strong>Methods: </strong>A scoping review of PubMed/Medline was undertaken in October 2021 to better understand these broad dimensions associated with remote worker health, well-being, and the home office workspace. The review focused on white-collar workers who undertook remote work during each of the lockdown waves from March 2020 to 2021.</p><p><strong>Results: </strong>A total of 62 studies were included in the review, which spanned Asia, North America, South America, and Europe. Overall, workers seemed to enjoy remote work, but productivity varied. The main setbacks associated with remote work included feelings of isolation and loneliness, which negatively influenced well-being. Social support from management and contact with colleagues mitigated this. Leadership style also influenced remote worker well-being. Overall, women suffered from lower levels of remote work well-being and productivity, especially if they had children. The home office and its adaptability were integral for successful remote work. Work-life balance was affected in some workers who struggled with heavier workloads or family duties.</p><p><strong>Conclusions: </strong>To promote well-being and successful remote work, isolation and loneliness should be reduced through greater contact with colleagues and managers. Managers should promote family friendly policies that may support work-life balance and reduce gender inequities in remote work.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11069417/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139642341","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}

{"title":"Interventions in the workplace to reduce risk factors for noncommunicable diseases: an umbrella review of systematic reviews of effectiveness.","authors":"Heidi Turon, Aaron Bezzina, Hannah Lamont, Courtney Barnes, Melanie Lum, Rebecca K Hodder, Gloria K W Leung, Anna Peeters, Luke Wolfenden, Serene Yoong","doi":"10.1093/joccuh/uiae044","DOIUrl":"10.1093/joccuh/uiae044","url":null,"abstract":"<p><strong>Background: </strong>Workplaces are an important setting to deliver programs to reduce risk factors for noncommunicable diseases (NCDs). To help decision makers understand the most current and relevant evidence regarding effectiveness of workplace programs, we conducted an umbrella review to present a comprehensive synthesis of the large volume of literature.</p><p><strong>Methods: </strong>Systematic reviews of workplace interventions targeting primary risk factors for NCDs-unhealthy diet, insufficient physical activity, overweight/obesity, tobacco use, and/or excessive alcohol use-published since 2010 were sourced. For each risk factor, reviews were categorized by intervention type and quality. The most recent, high-quality review was included for each intervention type. Evidence for the effectiveness of each intervention type was then broadly classified based on the review summary findings.</p><p><strong>Results: </strong>Twenty-one reviews were included. Most reviews focused on diet (n = 5), physical activity (n = 7), or obesity (n = 9) interventions, with fewer targeting alcohol (n = 2) or tobacco (n = 2) use. Reviews of interventions focusing on individual behavior (such as education or counseling) were most common. Across diet, obesity, physical activity, and tobacco use, multicomponent interventions were consistently likely to be classified as \"likely effective.\" Motivational interviewing and broad health promotion interventions were identified as \"promising\" for alcohol use.</p><p><strong>Conclusion: </strong>This umbrella review identified that multicomponent workplace interventions were effective to reduce NCD risk factors. There is a gap around interventions targeting alcohol use as most syntheses lacked enough studies to draw conclusions about effectiveness. Exploring the impact of interventions that utilize policy and/or environmental strategies is a critical gap for future research.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11784587/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141889529","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}

{"title":"Health and productivity management initiatives to promote worker health and improve the workplace environment at the Fukushima Daiichi nuclear power plant.","authors":"Takahiro Mori, Ryotaro Ito, Kenta Moriya, Seiichiro Tateishi, Tatsuhiko Kubo, Ryuji Okazaki, Katsunori Suzuki, Hiroshi Kikuchi, Koji Mori","doi":"10.1093/joccuh/uiae004","DOIUrl":"10.1093/joccuh/uiae004","url":null,"abstract":"<p><strong>Background: </strong>Since the Fukushima Daiichi nuclear power plant (FDNPP) accident in 2011, measures have been taken to address occupational health risks, such as heat illness and infectious diseases, and ensure fitness for duty with the Tokyo Electric Power Company and its contractors. However, with the decommissioning operations set to span several decades and an aging workforce, there arose a need for proactive occupational health strategies that not only addressed these risks but also promoted employee health and created a comfortable work environment. With the Japanese government's promotion of health and productivity management (HPM) for corporations, an HPM-based initiative was launched at the FDNPP in 2019.</p><p><strong>Case: </strong>We designed an HPM questionnaire tailored to the unique conditions at the FDNPP for contractors in 2019. Subsequently, we adjusted the questionnaire annually in light of evolving societal contexts and insights derived from contractors' feedback. This initiative also involved the annual recognition of outstanding contractors. These efforts have led to a steady increase in the number of contractors participating in the HPM survey, with respondents' scores continually improving. We also emphasized dissemination of HPM practices from contractors to their subcontractors due to the complex subcontracting structure at FDNPP, and our results showed that more contractors have been extending these efforts to their subcontractors.</p><p><strong>Conclusions: </strong>Our findings suggest that individual contractors are steadily enhancing their HPM efforts. We are committed to continually offering support to advance HPM throughout the FDNPP.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10902887/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139513028","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}

{"title":"The impact of overseas assignments on metabolic factors: Panasonic cohort study 23.","authors":"Tetsuya Murano, Hiroshi Okada, Masahide Hamaguchi, Kazushiro Kurogi, Yoshihide Tatsumi, Hiroaki Murata, Naoki Yoshida, Masato Ito, Michiaki Fukui","doi":"10.1093/joccuh/uiae071","DOIUrl":"10.1093/joccuh/uiae071","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to assess the effects of overseas assignments on the metabolic factors associated with lifestyle disease including body mass index, blood pressure, plasma glucose, lipid profiles, liver enzyme, and uric acid in Japanese individuals.</p><p><strong>Methods: </strong>A retrospective cohort study was conducted using annual health examination data from employees of the Panasonic Corporation in Japan. We evaluated the differences in the changes in metabolic factors associated with lifestyle disease during the observation periods between the overseas and non-overseas assignment groups. Propensity score matching was performed to match the characteristics of the two groups. In subgroup analysis, the impact of family accompaniment and the destination on metabolic factors associated with lifestyle disease were also evaluated.</p><p><strong>Results: </strong>The median ages of the overseas (n = 899) and non-overseas assignment groups (n = 899) were 46 (41-50) and 46 (41-50) years. The average overseas assignment duration was 4.1 ± 1.7 years. Overall, 65.4% of individuals were assigned overseas alone in the overseas assignment group. No significant differences were observed in the changes in metabolic factors associated with lifestyle disease between the overseas and non-overseas assignment groups. In subgroup analyses, the family accompaniment and the destination did not affect changes in any of metabolic factors associated with lifestyle disease during the overseas assignment.</p><p><strong>Conclusions: </strong>In conclusion, no significant difference was observed in metabolic factors associated with lifestyle disease between the overseas and non-overseas assignment groups in Japanese employees.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11659593/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142687268","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}

{"title":"The impact of financial incentives on physical activity for employees in the context of workplace health promotion: a systematic review.","authors":"Miriam Alice Vitzthum, Karsten Krüger, Christopher Weyh","doi":"10.1093/joccuh/uiae048","DOIUrl":"10.1093/joccuh/uiae048","url":null,"abstract":"<p><strong>Objectives: </strong>The global increase in physical inactivity is progressively evolving into a significant health challenge. Alongside the promotion of more active leisure pursuits, elevating physical activity in the workplace has come into focus. Financial incentives are not only a popular but also a promising tool in this regard. According to behavioral economics, they are able to initiate physical activity and thus create the basis for behavioral change.</p><p><strong>Methods: </strong>The present systematic review was prepared according to the current PRISMA guidelines and with reference to the Cochrane Handbook. A systematic literature search of 6 electronic databases and 3 study registers was conducted to identify relevant literature. Both randomized controlled trials (RCTs) as well as non-RCTs were included. The Cochrane Risk-of-Bias Tool and the ROBINS-I Tool were used to assess the risk of bias of individual studies, whereas the GRADE approach was used to evaluate the quality of evidence for all studies related to physical activity outcomes. A narrative synthesis was conducted.</p><p><strong>Results: </strong>Six studies were included in the review. Among the total of 2646 participants, the average age ranged from 35.5 to 43.3 years, and women accounted for between 48.6% and 88%. Risk of bias was rated as \"high\" in 3 studies, \"moderate\" in 2, and \"low\" in 1. The quality of evidence was assessed as \"moderate.\" Four of the 6 studies reported positive effects on physical activity during the incentive period.</p><p><strong>Conclusions: </strong>Workplace health promotion incorporating financial incentives has the potential to positively impact the physical activity levels of employees.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11662443/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142004399","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}

{"title":"Estimating the probability of multiple incidences of the same cancer type in a single workplace.","authors":"Sintaroo Watanabe, Kota Fukai, Masayuki Tatemichi","doi":"10.1093/joccuh/uiae072","DOIUrl":"10.1093/joccuh/uiae072","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to estimate the probability of observing 2 cases of the same cancer type in a workplace with 300 employees, to help investigation of occupational cancer.</p><p><strong>Methods: </strong>We assumed a workplace where chemicals are handled, employing 300 males aged 15 to 64, with an age distribution standardized to Japan's population from 2016 to 2019. Using national cancer statistics for newly diagnosed cases among males in this age range and period, we calculated the expected number of cancer cases for the workplace over a 1- and 10-year period. We computed standardized incidence ratios (SIRs) for 2 instances of the same cancer type within these time frames and estimated the time required for the SIR to reach 2.0 and its lower 95% CI limit (LL) to reach 1.0.</p><p><strong>Results: </strong>The SIR for any cancer type exceeded 10 and was significantly high when 2 cases occurred within 1 year. Over 10 years, the SIR remained significantly high in some cancer types. The observation periods required for SIR to reach 2.0 and LL to reach 1.0 for any cancer type were at least 5.4 and at least 1.7 years, respectively.</p><p><strong>Conclusions: </strong>Considering that over 99% of Japanese workplaces employ fewer than 300 people, the likelihood of observing the same cancer type within 1 year is low. This study enhances our understanding of occupational cancer incidence and supports the integration of such data into prevention strategies.</p>","PeriodicalId":16632,"journal":{"name":"Journal of Occupational Health","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11662353/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824270","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}