Sangyo eiseigaku zasshi = Journal of occupational health最新文献

{"title":"[Development of a stressor scale for emergency dispatchers in fire service: Reliability and validity assessment].","authors":"Haruka Taguchi, Yasumasa Otsuka","doi":"10.1539/sangyoeisei.2026-016-E","DOIUrl":"https://doi.org/10.1539/sangyoeisei.2026-016-E","url":null,"abstract":"<p><strong>Objective: </strong>Command-and-control operations in fire services are central in disaster response, encompassing emergency call handling and unit deployment management. Previous studies have indicated that emergency call-related duties impose heavy physical and psychological workloads. However, stressors encountered in command-and-control operations in Japanese fire services remain unclear. Therefore, this study identified the components of stressors specific to command-and-control operations in fire services and developed a Stressor Scale for Emergency Dispatchers. The reliability and validity of the scale were examined.</p><p><strong>Methods: </strong>Ten personnel with experience in command-and-control operations in fire services were interviewed regarding work stressors. Accordingly, a preliminary draft of the Stressor Scale for Emergency Dispatchers was created. Subsequently, a questionnaire survey was conducted at participating fire services and firefighting command centers. We surveyed 400 personnel (219 valid responses), whose primary duties involved command-and-control operations in fire services or firefighting command centers. Exploratory factor analysis was implemented to confirm the scale's factor structure. Reliability was assessed using Cronbach's alpha coefficients, and validity was examined using correlation analyses with related concepts, including occupational stressors, suppression, and stress responses.</p><p><strong>Results: </strong>Exploratory factor analysis revealed that stressors specific to command-and-control operations in fire services involved four factors; \"high workload content,\" \"coordination failure,\" \"response to callers,\" and \"difficulty resting.\" Each factor demonstrated sufficient Cronbach's alpha. Regarding validity, all the factors showed significant positive correlations with occupational stressors and stress responses. Additionally, suppression was only significantly correlated with \"response to callers.\"</p><p><strong>Conclusion: </strong>This study clarified the stressors specific to command-and-control operations in fire services. The newly developed Stressor Scale for Emergency Dispatchers was reliable and valid.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149121169","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[A survey on low back pain and preventive measures among land freight transportation workers].","authors":"Tanghuizi Du, Kazuyuki Iwakiri, Naomichi Tani, Kenji Ishii, Atsushi Sugama, Takayuki Tanaka, Kazuki Hiranai, Akihiko Seo, Takeshi Ebara","doi":"10.1539/sangyoeisei.2025-024-E","DOIUrl":"10.1539/sangyoeisei.2025-024-E","url":null,"abstract":"<p><strong>Objectives: </strong>Low back pain (LBP) remains a major occupational health concern in the land freight transportation industry and has yet to be effectively resolved. Contributing factors include insufficient implementation of preventive measures and misalignment with actual working conditions. In this study, we aimed to identify tasks associated with high lumbar loads, examine the current situation of LBP, and evaluate the implementation of preventive measures among workers in the land freight transportation industry through interviews and a web-based questionnaire survey.</p><p><strong>Methods: </strong>We conducted semi-structured interviews with 16 workers and 19 managers from 8 companies to understand job characteristics, the prevalence of LBP, and the status of preventive efforts. Additionally, a web-based questionnaire survey was administered to 2,000 workers in the land freight transportation industry. Descriptive statistics were used to analyze the survey responses.</p><p><strong>Results: </strong>The interview survey identified tasks that impose substantial stress on the lower back, including manual lifting and lowering of heavy loads, organizing cargo on the beds of kei-trucks, pushing and pulling carts on slopes, prolonged driving, and transferring loads between pallets at delivery sites. The web-based survey revealed that 66.9% of respondents had experienced LBP in the past year. The primary work-related factors reported by workers with LBP were manual lifting and carrying heavy loads, although these factors varied according to occupational characteristics. Truck drivers frequently reported a lack of exercise, poor driving posture, and long working hours, whereas warehouse workers commonly reported prolonged standing, awkward postures during material handling, and high levels of psychological stress. Preventive measures included exercise and training, improvements to the driving environment for drivers, and guidance on proper posture for warehouse workers.</p><p><strong>Conclusions: </strong>The prevalence of LBP among land freight transportation workers remains high, with excessive lower back stress being inherent in daily tasks. These findings suggest the importance of occupational health education focused on proper working posture, the promotion of mechanization and automation to reduce manual lifting, and the provision of appropriate rest breaks. Importantly, tailored preventive approaches that are adapted to specific job characteristics may be required. Additional longitudinal or interventional studies are needed to further examine preventive strategies.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"179-189"},"PeriodicalIF":0.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148414636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Development of a manual for appropriate data collection and judgment in special health examinations].","authors":"Yuki Kumakawa, Koji Mori, Osamu Une, Kenya Yamamoto, Masayuki Tatemichi","doi":"10.1539/sangyoeisei.2026-012-S","DOIUrl":"10.1539/sangyoeisei.2026-012-S","url":null,"abstract":"","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"190-196"},"PeriodicalIF":0.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148274122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Weight change following a self-selected, type-tailored lifestyle modification program for employees with suspected visceral fat accumulation: A single-arm before-after study].","authors":"Sayaka Hari, Masazumi Kumamoto, Megumi Suzuki, Rie Mizumoto, Hiroshi Aoyama, Noriko Osaki","doi":"10.1539/sangyoeisei.2026-008-B","DOIUrl":"10.1539/sangyoeisei.2026-008-B","url":null,"abstract":"<p><strong>Objectives: </strong>This single-arm before-after study examined short-term changes in body weight following a 28-day self-selected, type-tailored lifestyle modification program implemented before workplace health checkups. Participants self-identified one of the seven types based on brief descriptions and created a personalized program.</p><p><strong>Methods: </strong>Employees aged 35-64 years from Kao Group corporations who met body mass index (BMI) ≥ 25 kg/m² or waist circumference criteria (men ≥ 85 cm, women ≥ 90 cm) were eligible. Participants self-selected either a \"supported\" (daily prompts for record entry and weekly automated feedback) or \"self-managed\" (booklet only) course and followed the 28-day program. The primary outcome was the change in self-measured body weight from pre- to post-program. Secondary outcomes included changes in annual health checkup parameters (body weight, BMI, waist circumference, blood pressure, blood glucose, and lipid profiles), specific health guidance levels, and metabolic syndrome (MetS) classification.</p><p><strong>Results: </strong>Among 162 analyzed participants (supported: 108, self-managed: 54), the mean change in body weight was -1.75 kg (95% confidence interval [CI], -2.01 to -1.43, p < .001). Mean changes by course were -1.67 kg (supported) and -1.93 kg (self-managed) (both p < .001). The adjusted estimate (controlling for sex, age, and baseline weight) was similar (-1.75 kg, 95% CI; -2.07 to -1.42, p < .001). Waist circumference decreased significantly. The proportion of participants requiring specific health guidance and those classified as having MetS or pre-MetS decreased by approximately 15% and 8%, respectively. No significant changes were observed in blood pressure, blood glucose levels, or lipid profiles.</p><p><strong>Conclusions: </strong>Short-term decreases in self-measured body weight and waist circumference were observed after the 28-day program, along with decreased proportions requiring health guidance or classified as having MetS or pre-MetS. However, owing to the single-arm design and potential confounding factors, causal attribution to the intervention could not be made. Randomized controlled trials and longer-term follow-up are required to confirm its effectiveness and sustainability.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"153-166"},"PeriodicalIF":0.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148274142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Current situation and challenges in patient transport and physical burden during emergency medical services activities].","authors":"Kenta Egawa, Yutaka Takei, Koichi Sasaki, Taiki Nishi, Yasuharu Yasuda","doi":"10.1539/sangyoeisei.2025-032-E","DOIUrl":"10.1539/sangyoeisei.2025-032-E","url":null,"abstract":"<p><strong>Objectives: </strong>Most emergency incidents in Japan occur in residential settings, requiring emergency medical services (EMS) personnel to work in confined indoor spaces. Many EMS personnel report physical strain on the lower back in transporting patients using devices that require lifting, such as tarpaulin stretchers. However, the specific transport methods chosen by EMS personnel and physical burden associated with each method remain unclear. \"No Lift\" practices, which avoid manual lifting and reduce lumbar strain in healthcare and welfare fields and in Australia, have attracted attention. Some Japanese fire departments have introduced the Air Stretcher, a no-lift transport device, although its effectiveness remains insufficiently evaluated. Therefore, this study aimed to elucidate current patient transport practices and related physical burden in residential indoor environments and identify challenges related to EMS patient transport.</p><p><strong>Methods: </strong>An anonymous online questionnaire survey administered via Google Forms was conducted with 1,152 EMS personnel from 47 prefectures who consented to participate. Survey items included (1) participant characteristics, (2) transport methods, such as manual carrying and equipment-based methods, (3) physical burden (fatigue, lumbar strain, and ease of implementation), (4) actual transport practices, and (5) transport safety, including near misses and accidents. Key analytical items were (1) fatigue associated with each transport method, analyzed using the Air Stretcher as the reference, (2) proportion of personnel reporting lumbar burden, (3) ease of implementation, and (4) experience of near-misses or accidents.</p><p><strong>Results: </strong>Many EMS personnel rely on tarpaulin stretchers and other equipment that require lifting and lowering primarily because of their ease of use. Additionally, most personnel reported experiencing lumbar strain during emergency activities, and near-misses or accidents were frequently associated with tarpaulin stretcher use. Although the Air Stretcher demonstrated lower fatigue and reduced lumbar strain, supporting the effectiveness of no-lift transport, its usage rate remained low (approximately 20%).</p><p><strong>Conclusions: </strong>Tarpaulin stretchers are the most commonly used transport method in emergency settings. Although easy to implement, tarpaulin stretchers are associated with a higher lumbar burden and an increased risk of near-misses or accidents. No-lift transport methods may help reduce fatigue and lower back strain in EMS personnel. With the anticipated increase in the number of older and female EMS personnel in Japan, broader education and implementation of no-lift transport devices are warranted.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"167-178"},"PeriodicalIF":0.0,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148202061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Development and psychometric evaluation of the Brief Job Stress Questionnaire short form (BJSQ-10)].","authors":"Koki Sasame, Sora Hashimoto, Yasuto Shirataki, Yoshiyuki Tanaka, Ayumi Fusejima, Kanae Tani, Hiroki Ogyu, Akira Tsuda","doi":"10.1539/sangyoeisei.2026-006-B","DOIUrl":"https://doi.org/10.1539/sangyoeisei.2026-006-B","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to develop a short form of the 57-item Brief Job Stress Questionnaire (BJSQ-57), designated as BJSQ-10, to complement the mandatory annual stress check program and to enable more frequent monitoring of occupational stress, and to psychometrically evaluate its reliability and validity. Study 1 involved item selection for the short form through exploratory factor analysis using BJSQ-57 response data, while Study 2 examined the reliability and validity of the developed scale using online survey data. Study 1 Methods: Item selection was conducted using BJSQ-57 response data from 18,155 employees across 18 worksites, integrating t-test-based statistics, effect sizes (Cohen's d), exploratory factor analysis results, and practical applicability in occupational health settings.</p><p><strong>Results: </strong>Ten items were selected, covering three domains: job stressors, stress responses, and social support. Using BJSQ-57 as the criterion for high-stress identification, the BJSQ-10 demonstrated good classification accuracy with moderate agreement. Study 2 Methods: Response data from 475 employed adults, obtained through an online survey, were used to examine the reliability and validity of the BJSQ-10. Reliability was assessed regarding internal consistency, while validity was evaluated through concurrent validity based on the association with the BJSQ-57, construct validity through associations with other scales (SHS and TAC-24), and examination of a causal model using structural equation modeling.</p><p><strong>Results: </strong>Sufficient internal consistency was confirmed for the stress response and social support subscales. The alpha coefficient for job stressors was relatively low because of the nature of the scale design. Correlations with the corresponding BJSQ-57 domains were generally satisfactory across subscales, and construct validity was supported by structural equation modeling.</p><p><strong>Discussion and conclusion: </strong>The BJSQ-10 was developed as a short form, demonstrating acceptable levels of reliability and validity. The scale is considered useful as a continuous monitoring tool to complement the annual stress check program. However, several limitations were identified in this study, and further validation is warranted.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148883251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Workplace-environment-improvement initiatives and challenges for mental health promotion in small-scale enterprises: An analysis based on interview surveys].","authors":"Chie Nakajima, Jiro Moriguchi, Haruyuki Uchida, Masashi Mizumoto, Yumi Sano, Kenichi Kojima, Etsuko Yoshikawa, Toru Yoshikawa, Akizumi Tsutsumi","doi":"10.1539/sangyoeisei.2026-011-E","DOIUrl":"https://doi.org/10.1539/sangyoeisei.2026-011-E","url":null,"abstract":"","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148665507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Biological effects of lunar regolith dust].","authors":"Taisuke Tomonaga, Hiroto Izumi, Hidenori Higashi, Chinatsu Nishida, Yasuo Morimoto","doi":"10.1539/sangyoeisei.2026-001-A","DOIUrl":"10.1539/sangyoeisei.2026-001-A","url":null,"abstract":"<p><strong>Objective: </strong>It is important to understand the biological effects of lunar dust (regolith) if human activities, prolonged stays, and eventual habitation are to take place on the Moon.</p><p><strong>Methods: </strong>This study explains the biological effects of regolith and is based on an assessment of findings from studies that used regolith and regolith simulants and knowledge derived from the physicochemical properties of terrestrial dust.</p><p><strong>Results: </strong>In vitro cell culture studies using regolith simulants showed that the cytotoxicity and biological activity of lunar dust were generally lower than those observed for crystalline silica. Similarly, animal exposure studies that investigated the effects of regolith and regolith simulants showed limited inflammation and fibrosis, suggesting that their pulmonary toxicity is intermediate between that of titanium dioxide and crystalline silica. Although no allergy-enhancing effects, such as those seen in bronchial asthma, were observed, allergy effects have been reported for Asian dust, which has similar constituent components. This suggests that regolith could potentially enhance allergic responses. Furthermore, the results obtained using terrestrial regolith simulants may underestimate the biological effects of regolith because the simulants do not include certain materials, such as agglutinates, that are only generated in the lunar environment.</p><p><strong>Conclusions: </strong>Although the available experimental evidence does not suggest potentially severe cytotoxic, inflammatory, or fibrotic effects, careful evaluation of the chronic inhalation effects of lunar dust on future long-term lunar residents is required and this assessment should take into account its unique microstructure and surface chemical reactivity.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"125-135"},"PeriodicalIF":0.0,"publicationDate":"2026-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147625180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Factors associated with follow-up medical consultation behavior and time to consultation among employees with abnormal findings on periodic workplace health examinations: A retrospective longitudinal study in a male-dominated manufacturing company in Japan].","authors":"Kimiko Ikeda, Taisuke Togari","doi":"10.1539/sangyoeisei.2025-025-B","DOIUrl":"https://doi.org/10.1539/sangyoeisei.2025-025-B","url":null,"abstract":"<p><strong>Objectives: </strong>In Japan, workforce aging and population decline have increased the importance of maintaining the health of workers. Although secondary medical visits after workplace health check-ups reduce health risks, compliance remains low. Evidence focusing specifically on workplace-based health check-ups is limited. In this study, the aim was to identify factors associated with secondary medical visit behavior, and the timing of visits among employees with abnormal findings during workplace health check-ups.</p><p><strong>Methods: </strong>A total of 190 employees at Manufacturing Company A who received recommendations to seek medical consultation following regular health check-ups between 2014 and 2023, were included. Follow-up status was tracked from the year in which the recommendation was first issued. Individuals whose visits were confirmed by industrial health staff were assigned to the follow-up group (n = 129), and others to the non-follow-up group (n = 61). Associations between secondary medical visits and explanatory variables were examined using chi-square tests. Time to secondary visit was analyzed using Kaplan-Meier curves and log-rank tests. Cox proportional hazards regression analyses were performed to identify factors associated with the likelihood of secondary visits, first univariately and then multivariately, after adjustment.</p><p><strong>Results: </strong>Secondary medical visit rates were significantly higher among employees without spouses, younger workers, those with shorter tenure, and those who received recommendations to seek medical consultation. There were earlier secondary visits for employees without spouses, those with abnormal chest radiography findings, and those who received consultation recommendations, whereas daily alcohol consumption was associated with delayed visits. Cox proportional hazards analysis showed that having a spouse and daily alcohol consumption were associated with a lower likelihood of secondary visits, and abnormal chest radiographic findings and recommendations to seek medical consultation were independently associated with earlier secondary visits.</p><p><strong>Conclusions: </strong>Recommendations to seek medical consultation and abnormal chest radiographic findings prompted earlier secondary medical visits, whereas marital status, older age, and daily alcohol consumption were associated with delayed follow-up. These findings suggest that systematic and continuous support, including educational interventions involving family members, may be effective in improving secondary medical visit behaviors following workplace health check-ups.</p>","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148623503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Mental health and mental health literacy among novice teachers working in public elementary and junior high schools in a Japanese regional city: A cross-sectional study].","authors":"Takaaki Hirooka, Satoru Oishi, Ken Inada","doi":"10.1539/sangyoeisei.2026-004-B","DOIUrl":"10.1539/sangyoeisei.2026-004-B","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Objectives: &lt;/strong&gt;Mental health problems among schoolteachers are an increasing concern in Japan, with rising sickness absence and early turnover among younger teachers. We aimed to estimate the prevalence of key mental health indicators (psychological distress, insomnia, and burnout); characterize mental health literacy (depression stigma and recognition, help-seeking attitudes, and knowledge about mental illness) and perceived workplace climate; and examine factors associated with these indicators among novice teachers in public elementary and junior high schools in City A, Japan.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;An anonymous, self-administered, cross-sectional questionnaire survey was conducted among 115 novice teachers newly employed in City A on September 30 and October 2, 2025. The survey included the Kessler Psychological Distress Scale (K6), Athens Insomnia Scale-Japanese version (AIS-J), Japanese Burnout Scale (JBS), Depression Stigma Scale (DSS), Mental Illness and Disorder Understanding Scale (MIDUS), Attitudes Toward Seeking Professional Psychological Help-Short Form (ATSPPH-SF), and Workplace Climate Scale. We summarized score distributions, compared participants with elevated psychological distress (K6 ≥ 5) and/or insomnia symptoms (AIS-J ≥ 6) with those without these symptoms, and examined correlations. Structural equation modeling (SEM) was used to examine a hypothesized model that included lower depression stigma, more favorable help-seeking attitudes, higher perceived collaborative workplace climate, and lower latent mental health symptom burden (indicated by K6, AIS-J, and the JBS emotional exhaustion and depersonalization subscales).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;Valid responses were obtained from 91 participants (79.1%). Elevated psychological distress (K6 ≥ 5) was present in 49.5% of participants, and insomnia symptoms (AIS-J ≥ 6) in 44.0%. Teachers with elevated distress and/or insomnia reported higher burnout (emotional exhaustion and depersonalization) and lower perceived collaborative workplace climate. They were also less likely to identify the depression vignette as \"depression.\" In SEM, lower depression stigma was positively associated with more favorable help-seeking attitudes, which were, in turn, positively associated with perceived collaborative workplace climate. Perceived collaborative workplace climate was negatively associated with mental health symptom burden, whereas associations between knowledge about mental illness and the primary outcomes were limited.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;Elevated distress and insomnia were common among novice teachers in City A and were associated with help-seeking attitudes, recognition of depression, and perceived collaborative workplace climate. Although causal direction cannot be inferred from this cross-sectional study, support for novice teachers may benefit from a multidimensional approach to mental health literacy, and workplace-level strategies, i","PeriodicalId":94204,"journal":{"name":"Sangyo eiseigaku zasshi = Journal of occupational health","volume":" ","pages":"136-146"},"PeriodicalIF":0.0,"publicationDate":"2026-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147984364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}