Natasha Kinsman, Christina Dimitriadis, Anthony Del Monaco, Geza Benke, Sophia Xie, Malcolm Sim, StellaMay Gwini, Karen Walker-Bone
{"title":"Twenty-Year Longitudinal Cohort Study of Cancer Incidence and Mortality Among Workers in Two Primary Aluminum Prebake Smelters","authors":"Natasha Kinsman, Christina Dimitriadis, Anthony Del Monaco, Geza Benke, Sophia Xie, Malcolm Sim, StellaMay Gwini, Karen Walker-Bone","doi":"10.1002/ajim.70058","DOIUrl":"10.1002/ajim.70058","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Classified as carcinogenic to humans by the International Agency for Research on Cancer, aluminum production has been transitioning towards lower polycyclic aromatic hydrocarbon-emitting prebake smelters. This study explored the risk of cancer and mortality over 20 years follow-up among a cohort of aluminum prebake smelter workers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Method</h3>\u0000 \u0000 <p>Time-weighted average estimated exposure to the following airborne contaminants was available: total fluoride, sulfur dioxide, asbestos, oil mist, inhalable dust, benzene (<i>a)</i> pyrene (BaP), and benzene soluble fraction (BSF). Data about diagnosed cancers were accessed from the Australian Cancer Database and deaths and cause of deaths from the National Death Index, updating a previous linkage 9 years earlier.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>The cohort included 4495 male smelter workers. Mesothelioma was associated with historic asbestos exposure. BaP/BSF exposure were found associated with stomach cancer (10-year lag RR = 2.89 (1.19–6.98) [BaP], 2.88 (1.21–6.87) [BSF]), liver and prostate cancers, and Alzheimer's disease mortality. Oil mist exposure was associated with chronic obstructive pulmonary disease (COPD) mortality. There was no association between any smelter exposure and incidence of either lung or bladder cancer.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>In this updated linkage of aluminum prebake smelter workers' data, the association between respiratory cancer and fluoride, inhalable dust and BaP exposure (found in the 2002 linkage analysis) was not confirmed. There was also no increased incidence of bladder cancer. However, compared with the earlier linkage, a stronger association was found for stomach cancer and BaP/BSF exposure. The strong association between mesothelioma and asbestos exposure, found in earlier linkages, remains. Other associations identified will require further investigation.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7873,"journal":{"name":"American journal of industrial medicine","volume":"69 4","pages":"269-282"},"PeriodicalIF":3.1,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12981204/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146016911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kathleen G. Dobson, Yu-Chun Chien, Nancy Carnide, Peter M. Smith, Cameron A. Mustard
{"title":"Comparing Profiles of Mental Illness and Positive Mental Health Between Injured Workers and the General Working Population in Ontario","authors":"Kathleen G. Dobson, Yu-Chun Chien, Nancy Carnide, Peter M. Smith, Cameron A. Mustard","doi":"10.1002/ajim.70061","DOIUrl":"10.1002/ajim.70061","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Mental illness (MI) is prevalent among workers with work-related injury. However, complete mental health includes both MI and positive mental health (PMH). To better understand differences in prevalence, this study compared MI and PMH profiles among injured Ontario workers to a representative sample of the general Ontario working population.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We studied 1132 Ontario workers with a physical work-related injury from the Ontario Life After Work Injury Study (OLAWIS) and 1652 general workers in compensation-covered industries from the 2012 Mental Health Canadian Community Health Survey (MH-CCHS). MI was self-reported 18 months post-injury as a mood or anxiety disorder diagnosed pre- or post-injury in OLAWIS and defined as a major depressive episode or generalized anxiety disorder in MH-CCHS. PMH was measured in both samples using the Mental Health Continuum Short Form. Latent class analysis in each sample identified MI and PMH profiles, and chi-square tests assessed within- and between-sample differences.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Three MI and PMH classes were identified in the OLAWIS sample, whereas four MI and three PMH classes were identified in the MH-CCHS sample. Compared with general workers, more injured workers belonged to high-burden MI classes (19% vs. 9%) and the languishing PMH class (11% vs. 4%). Injured workers reported lower emotional and psychological well-being but higher belonging than general workers.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Most workers showed low MI and flourishing PMH, but injured workers more often showed high MI and languishing PMH. Targeting aspects of psychological and emotional well-being may help improve overall mental health among injured workers.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7873,"journal":{"name":"American journal of industrial medicine","volume":"69 4","pages":"283-293"},"PeriodicalIF":3.1,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12981210/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146197158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eric W. Lundstrom, Trevor Peckham, Vanessa M. Oddo
{"title":"Transitions Between Forms of Employment Quality and Associations With Self-Rated Health and Mental Health in the United States, 2008–2022","authors":"Eric W. Lundstrom, Trevor Peckham, Vanessa M. Oddo","doi":"10.1002/ajim.70057","DOIUrl":"10.1002/ajim.70057","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Introduction</h3>\u0000 \u0000 <p>A growing body of research is focused on the association between employment quality (EQ) and health, yet few studies have explored how transitions between types of EQ impact health in the United States (U.S.). Moreover, unemployed individuals are frequently omitted from EQ studies. The objective of this study was to assess how transitions between different EQ states, including unemployment, are associated with health in the U.S.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Using U.S. Medical Expenditure Panel Survey data from 2008 to 2022 (<i>n</i> = 71,957; weighted <i>n</i> = 126,312,273), this study identified five unique EQ types for men: 1. Salaried-Intensive; 2. Standard Employment Relationship (SER)-like; 3. Standard but Economically Vulnerable; 4. Precarious; and 5. Unemployed, and four for women: 1. SER-like, Union; 2. SER-like, non-Union; 3. Precarious; and 4. Unemployed. The probability of transitioning between each EQ type was measured using latent transition analysis (LTA). The probability of reporting poor/fair self-rated health (SRH) and self-rated mental health (SRMH) within each EQ transition was measured descriptively and associations of poor/fair SRH or SRMH with each EQ type were measured using generalized estimating equations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Respondents transitioning to or from low-EQ arrangements (e.g., precarious employment or unemployment) reported poor/fair SRH and SRMH more frequently relative to high-EQ (e.g., SER-like) types. LTA results suggested some respondents cycled between precarious employment and unemployment, potentially compounding the effects of employment instability on health.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Improving employment conditions, particularly for those caught in cycles of precarious employment and unemployment, may be an avenue for improving population health in the U.S.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7873,"journal":{"name":"American journal of industrial medicine","volume":"69 4","pages":"254-268"},"PeriodicalIF":3.1,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146008798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Knut Ringen, John M. Dement, Marianne Cloeren, Sammy Almashat, William Grier, Stella Hines, Laura S. Welch, Kim Cranford, Scott Haas, Patricia Quinn, Anna Chen, Miles Fisher
{"title":"Impact of Secondary Prevention on Mortality in the Building Trades National Medical Screening Program: Effectiveness of Occupational High-Risk Management","authors":"Knut Ringen, John M. Dement, Marianne Cloeren, Sammy Almashat, William Grier, Stella Hines, Laura S. Welch, Kim Cranford, Scott Haas, Patricia Quinn, Anna Chen, Miles Fisher","doi":"10.1002/ajim.70052","DOIUrl":"10.1002/ajim.70052","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Background</h3>\u0000 \u0000 <p>Since 1997 the Building Trades National Medical Screening Program (BTMed) has offered medical exams to construction workers employed in US nuclear weapons facilities. The process consists of two steps: (1) a detailed work history interview; and (2) a medical exam. Some participants only completed the work history interview, and we compared their mortality experience to those who also completed medical exams.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We compared the mortality of 3470 work-history-only participants to 23,452 participants who completed both the work history interview and medical exams and, of these, 1720 who additionally participated in lung cancer screening. We used Cox proportional hazard and Poisson regression models to estimate hazard ratios and risk ratios while controlling for potential confounders.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Medical exam participants experienced a reduction in mortality risk of 28% for all causes combined; 27% for all respiratory diseases combined; 37% for chronic obstructive pulmonary disease; 30% for cardiovascular diseases combined; 32% for all cancers combined; 36% for lung cancer; and 53% for colorectal cancer. The more medical exams they undertook the greater the mortality risk reduction (25%, 29%, and 43% for one, two, and three medical exams, respectively), demonstrating a clear trend. BTMed has prevented approximately 2911 premature deaths among our participants through 2021 and added 35,178 years of life, an average of 1.5 years per participant, at a cost of $2757 per year of life saved.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Secondary prevention in occupational high-risk groups is very effective. Continued surveillance beyond retirement age is important to reduce mortality.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7873,"journal":{"name":"American journal of industrial medicine","volume":"69 4","pages":"241-253"},"PeriodicalIF":3.1,"publicationDate":"2026-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12981205/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145909880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}