{"title":"Exploring factors associated with deterioration in mental health among foreign technical intern trainees: a 6-month follow-up study.","authors":"Mihoko Mori, Yoshitaka Morimatsu, Tatsuya Ishitake","doi":"10.2486/indhealth.2023-0165","DOIUrl":"10.2486/indhealth.2023-0165","url":null,"abstract":"<p><p>To investigate factors contributing to the mental health of Vietnamese technical intern trainees in the food manufacturing industry, a questionnaire survey was conducted twice with a six-month interval. A total of 111 technical trainees who participated in two surveys were included in the analysis. We used a mixed-effects model, where items with statistically significant associations in the univariate analysis were fixed effects, factories were random effects, and the outcome was defined as the K6 score at follow-up. The mean K6 score increased from 3.13 (SD 3.5) at baseline to 3.86 (SD 4.1) at follow-up, with 26.1% and 34.2% exhibiting poor mental health (K6 ≥5) at baseline and follow-up, respectively. Insomnia and years of training experience were significantly associated with the K6 score at follow-up. Those with insomnia had significantly higher K6 score at follow-up. Compared to the first year of training, K6 score at follow-up increased significantly for training in their third year or more. It is important to understand the sleeping conditions of trainees and support them based on their years of training experience.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"62-70"},"PeriodicalIF":1.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779512/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456526","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":"Industrial workers and bullying: a systematic review and meta-analysis of workplace violence.","authors":"Benito Zamorano-González, Fabiola Pena-Cardenas, Víctor Parra-Sierra, Gloria Imelda Hernandez-Rodriguez","doi":"10.2486/indhealth.2023-0114","DOIUrl":"10.2486/indhealth.2023-0114","url":null,"abstract":"<p><p>Workplace violence is a significant problem in industry, especially among rank-and-file workers, known as \"blue-collar workers\". This systematic review and meta-analysis aim to evaluate the suitability of the reduced Negative Acts Questionnaire (NAQ-R) as an instrument to measure workplace violence in this type of population and synthesize the results of studies that have used it in different industrial sectors. A systematic review was conducted in accordance with the PRISMA 2020 statement. Publications describing populations of industrial workers were identified and included in the meta-analysis. For meta-analysis, we extracted data that allowed us to estimate the effect size of the included studies. We used a random-effects model to estimate the overall effect size and assessed heterogeneity between studies using the I<sup>2</sup> statistic. The global effect size test showed that the overall effect size was significantly different from zero (3.00, t=22.28, p<0.001), indicating an overall effect in relation to workplace violence measured by the NAQ-R in industrial workers. Our results support the claim that the NAQ-R is an effective tool for assessing workplace violence among industrial workers. These findings have important implications for practitioners and researchers working in the field of industrial psychology and occupational health.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"53-61"},"PeriodicalIF":1.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779514/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141261896","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":"Mesothelioma carcinogenesis of chrysotile and forsterite compared and validated by intraperitoneal injection in rat.","authors":"Ayako Takata, Hiroshi Yamauchi, Kiyotsugu Yamashita, Masahito Aminaka, Toshiaki Hitomi, Tadao Toya, Norihiko Kohyama","doi":"10.2486/indhealth.2024-0025","DOIUrl":"10.2486/indhealth.2024-0025","url":null,"abstract":"<p><p>Asbestos, especially chrysotile, continues to be exposed to humans globally. Hence, it should be disposed properly to prevent asbestos-related diseases, including mesothelioma and lung cancer. This study aimed to verify whether forsterite, a heating product of chrysotile, can cause carcinogenicity, particularly mesothelioma. Forsterite (FO-1000) and enstatite (EN-1500) produced by heating chrysotile at 1,000°C and 1,500°C, respectively, were subjected. We injected 10 mg of chrysotile, FO-1000, or EN-1500 in rats intraperitoneally and observed the development of peritoneal mesothelioma until 24 months. The incidence of peritoneal mesothelioma in the chrysotile group was 91.2%, whereas in the FO-1000 and EN-1500 groups, peritoneal mesothelioma did not develop. Urinary 8-hydroxy-2'-deoxyguanosine and serum N-ERC/mesothelin concentrations significantly increased in the chrysotile group that developed peritoneal mesothelioma, while they only temporarily changed in the FO-1000 or EN-1500 groups during early treatment. Furthermore, there was a significant homozygous deletion of the CDKN2A/p16 gene in the chrysotile group compared to the control group, in contrast to no significant difference in the FO-1000 and EN-1500 groups. Therefore, this study provides clear evidence that forsterite is a nonmesothelioma carcinogen and suggests that forsterite and enstatite are sufficient substances for chrysotile detoxification.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"14-28"},"PeriodicalIF":1.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779520/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141065237","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}
Industrial HealthPub Date : 2025-01-24Epub Date: 2024-05-23DOI: 10.2486/indhealth.2023-0005
Yuko Ochiai, Yasumasa Otsuka
{"title":"Reliability and validity of the Japanese version of the Overwork Climate Scale.","authors":"Yuko Ochiai, Yasumasa Otsuka","doi":"10.2486/indhealth.2023-0005","DOIUrl":"10.2486/indhealth.2023-0005","url":null,"abstract":"<p><p>This study aimed to investigate the validity and reliability of the Japanese version of the Overwork Climate Scale. Japanese workers were invited to participate in online surveys at baseline and 1-month follow-up. The Overwork Climate Scale was translated into Japanese, according to international guidelines. Reliability was assessed using Cronbach's alpha and the intra-class correlation coefficient (ICC), while structural validity was evaluated through confirmatory factor analysis (CFA). Psychological job demands, work engagement, psychological safety, and workaholism were assessed for convergent validity. The number of respondents was 302 at baseline and 169 at follow-up. Results indicated robust Cronbach's alpha values of 0.86 (for overwork endorsement) and 0.80 (for lacking overwork reward) at baseline, complemented by ICC of 0.89 and 0.82, respectively. CFA confirmed the suitability of the two-factor model. Moreover, the Japanese Overwork Climate Scale exhibited significant correlations with anticipated constructs. Structural equation modeling revealed a consistent association between overwork climate and both workaholism and work engagement, similar to the original version. In conclusion, the Japanese version of the Overwork Climate Scale demonstrates acceptable levels of reliability and validity, warranting its potential adoption among Japanese workers.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"40-52"},"PeriodicalIF":1.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779519/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141079623","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}
Industrial HealthPub Date : 2025-01-24Epub Date: 2024-05-20DOI: 10.2486/indhealth.2024-0027
Tianchang Ji, May Young Loh, Jan DE Jonge, Maria C W Peeters, Toon W Taris, Maureen F Dollard
{"title":"\"Are you feeling safe?\": an investigation of psychosocial safety climate in the relations of job characteristics and employee exhaustion and engagement.","authors":"Tianchang Ji, May Young Loh, Jan DE Jonge, Maria C W Peeters, Toon W Taris, Maureen F Dollard","doi":"10.2486/indhealth.2024-0027","DOIUrl":"10.2486/indhealth.2024-0027","url":null,"abstract":"<p><p>Psychosocial safety climate (PSC) is defined as the corporate climate in relation to employees' perceptions of organizational policies, procedures, and practices for the protection of employee psychosocial safety and well-being. The present study was based on the Demand-Induced Strain Compensation (DISC) Model and proposed that the interplay between identical job demands and resources would be conditioned by PSC. Particularly, high levels of PSC would enable employees to optimally perceive and utilize more job resources in dealing with corresponding job demands. A study was conducted among 406 Chinese workers from various occupational sectors. The findings of hierarchical regression analyses suggested that PSC a) mitigates the negative relation between emotional resources and exhaustion, b) enhances the positive relation between emotional resources and work engagement, and c) mitigates the negative relation between emotional demands and work engagement. We also found that PSC is a compensatory factor for low cognitive resources and demands encouraging high work engagement. Although we did not find the proposed three-way interactions, the present findings support the idea that high PSC is a fundamental contextual factor conducive to workers' health and well-being, especially in perceiving and obtaining emotional resources.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"3-13"},"PeriodicalIF":1.8,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11779518/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141065266","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":"EditorialEnriching caregivers for the elderly through workplace improvement.","authors":"Masaya Takahashi","doi":"10.2486/indhealth.63_400","DOIUrl":"10.2486/indhealth.63_400","url":null,"abstract":"","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":"63 4","pages":"318"},"PeriodicalIF":1.6,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12304658/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144682582","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":"Effective management for the duration and quality of working time.","authors":"Masaya Takahashi","doi":"10.2486/indhealth.63_100","DOIUrl":"10.2486/indhealth.63_100","url":null,"abstract":"","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":"63 1","pages":"1-2"},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11780265/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143046460","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":"Smile at work to achieve the level of comfort in the workplace.","authors":"Masaya Takahashi","doi":"10.2486/indhealth.63_200","DOIUrl":"10.2486/indhealth.63_200","url":null,"abstract":"","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":"63 2","pages":"107"},"PeriodicalIF":1.8,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11995147/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772243","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}
Industrial HealthPub Date : 2024-11-26Epub Date: 2024-09-10DOI: 10.2486/indhealth.2024-0115
Mayumi Saiki, Wendie Robbins, Dante Anthony Tolentino, Paul M Macey, Akinori Nakata, Jian Li
{"title":"Associations of work-family conflict with changes in metabolic risk factors: a four-year longitudinal study.","authors":"Mayumi Saiki, Wendie Robbins, Dante Anthony Tolentino, Paul M Macey, Akinori Nakata, Jian Li","doi":"10.2486/indhealth.2024-0115","DOIUrl":"10.2486/indhealth.2024-0115","url":null,"abstract":"<p><p>Cardiovascular disease (CVD) is becoming prevalent among younger people who have dual roles at both work and home. A possible contributor to CVD is conflict between work and home life. Thus, this study investigated the impact of work-to-family conflict (WFC) and family-to-work conflict (FWC) on metabolic risk factors. We used longitudinal data with a 4-yr interval from the Midlife in Japan study. 152 participants who were employed at baseline without missing variables of interest were included. We assessed the associations of baseline WFC and FWC with changes in metabolic risk factors between baseline and follow-up using Generalized Estimating Equations. After adjusting for baseline sociodemographic, work and family-related, and lifestyle factors, the fully adjusted model showed WFC was significantly associated with changes in low-density lipoprotein cholesterol (LDL-C) and Total cholesterol (TC)/high-density lipoprotein cholesterol (HDL-C) ratio. However, FWC was not significantly associated with changes in any metabolic risk factors. Our findings indicated a significant impact of WFC on LDL-C and TC/HDL-C ratio but no significant impact of FWC on metabolic health. Since these metabolic risk factors cause CVD, understanding the physiological responses to occupational psychosocial stress could help create primary prevention interventions and assess their effects on workers' metabolic health.</p>","PeriodicalId":13531,"journal":{"name":"Industrial Health","volume":" ","pages":"367-376"},"PeriodicalIF":1.8,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11611536/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142286195","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}