Objectives: While women are expected to support Japan’s labor force, they often quit their jobs because of pregnancy and childbirth. Occupational stress affects reproductive life events unique to women, including pregnancy intention and premature birth. This study aimed to examine occupational stress and its related factors among working women of reproductive age, especially from the perspective of pregnancy. Methods: This cross-sectional observational study involved a web survey of childless female workers aged 20–44 years, conducted in April–May 2019 in Japan. The survey items included the Brief Job Stress Questionnaire, demographic characteristics, and work-related variables. Logistic regression analysis was performed with physical and psychological stress reactions as dependent variables and demographic characteristics and work situation as control variables. Results: Of the 904 employees, 450 were pregnant. Physical stress reactions indicated that being pregnant and stress risk related to job control, interpersonal conflict, suitable jobs were significantly associated. Further, psychological stress reactions including stress risk related to job overload, job control, interpersonal conflict, and suitable jobs were significantly associated, but being pregnant was not. Among pregnant women, being in the first trimester and maternity harassment were significantly associated with physical and psychological stress reactions. Conclusions: To ensure that women in their prime continue working through pregnancy and after childbirth, gender-friendly social systems and workplaces free of harassment are required, as well as workplace support systems appropriate for each stage of pregnancy.

Objectives: This study explored the perceptions of workers regarding mobile health (mHealth) services for physical activity and mental health. Methods: Single, online, one-on-one, 60-minute semi-structured interviews were conducted with workers living or working in Tokyo, Japan. The transcribed text corpus of the interviews was used as data to explore their perceptions. The top 200 nouns in the utterances were extracted and modeled using a bag of words (BoW) and embedded into a two-dimensional space. Results: The interviews extracted 476 utterances with 1,294 nouns from the 12 workers (7 males and 5 females). A total of 10 themes were estimated from the top 200 nouns. The participants mostly agreed that physical activity was effective in improving their mental health. They needed individualized, attractive, and easy mHealth services. Other estimated themes were: limited effects of non-leisure physical activity on mental health, lower priority on physical activity rather than sleep and rest, reluctance to share the data within the groups, and difficulties in wearing the devices to measure physical activity due to work rules. Conclusion: Workers’ perceptions of mHealth services were consistent with previous findings: the need for individualization, attraction, and ease of use. In the working population, mHealth services for physical activity and mental health should consider working conditions and focus on leisure-time physical activity. Social sharing might not be a mandatory technique because of the private topics and variety of associations between physical activity and mental health.

Objectives: This study examined the relationship of potential advisors — human resources or services that advise workers when they experience health issues that affect their work and work-related health — with psychological distress and analyzed which human resources have a greater impact on improving workers’ mental health. Methods: An Internet-based survey using a self-administered questionnaire was conducted. The target population was workers between the ages of 20 and 69 years. Among a total of 5,111 participants, 4,540 were included in the present analysis. Participants were asked questions regarding potential advisors on work-related health issues. The Kessler 6-item Psychological Distress Scale (K6) was used to assess psychological distress. We used a generalized linear model with a binomial response for assessing the relationship between K6 scores and each potential advisor on work-related health issues. Results: Participants without potential advisors on work-related health issues were significantly more likely to score both K6 ≥5 (cutoff for mild psychological distress) and K6 ≥13 (cutoff for severe psychological distress) than the participants with potential advisors (all p<0.001). The participants for whom a supervisor was the potential advisor on work-related health issues were significantly less likely to score K6 ≥13 than their counterparts (p=0.005). Those for whom an occupational physician or family members was the potential advisor on work-related health issues were significantly less likely to score K6 ≥5 than their counterparts (p=0.011 and p=0.001, respectively). Conclusions: Having potential advisors could be important for workers’ mental health improvement. Specifically, having supervisors, occupational physicians, or family members as potential advisors may be effective in reducing workers’ psychological distress.

Objective: To investigate whether implementing a radiation management safety checklist (RMSC) can improve personnel dosimetry among physicians’ dosimeter wearing rate for those performing fluoroscopy. Methods: Initially, we visually inspected whether the physicians were wearing personal dosimeters. Subsequently, during a “time-out” period recommended by the RMSC, the medical worker mutually confirmed whether the personal dosimeters were worn correctly. If errors in personnel dosimetry were noted, verbal recommendations to correct the error and follow double dosimetry were made. Lastly, the physicians’ dosimeter wearing rates before and during RMSC implementation were compared and analyzed. Results: Before the measurement period, the personal dosimeter wearing rate among all physicians who perform fluoroscopy at the study center (n=72) was 58.2%; during the measurement period, it reached 80.1% (χ²[2]=21.254, p<0.01, φ=−0.227), indicating that RMSC implementation improved the physician’s dosimeter wearing rate. However, 40.1% and 37.9% of the physicians were not registered radiation workers before and during the measurement period, respectively, and RMSC implementation did not significantly improve the registration rate during the study period (χ²[2]=0.349, p=0.554, φ=−0.023). Conclusions: The risk of radiation injury may have been overlooked among physicians involved in fluoroscopy and other routine clinical practices that cause radiation exposure. The investigated medical facilities registered physicians as radiation workers at the individual’s discretion. There is an urgent need to develop a radiation management system that mandates the use of personal dosimeters among all physicians at risk of radiation exposure.