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Objectives: This systematic review aimed to assess the association between psychosocial factors in the workplace and menstrual abnormalities or fertility, focusing on literature implementing a prospective cohort design., Methods: We searched MEDLINE, EMBASE, PsycINFO, PsycARTICLES, and Japan Medical Abstracts Society electronic databases for studies published from inception to February 26, 2020, and updated the search in PubMed on May 29, 2024. Inclusion criteria were (P) adult female workers (over 18 years old), (E) presence of adverse psychosocial factors at work, (C) absence of adverse psychosocial factors at work, and (O) any menstrual cycle disorders, menstrual-related symptoms, or fertility issues. Prospective cohort studies were included. The included studies were summarized descriptively., Results: Database searching yielded 14,238 abstracts, with nine studies meeting the inclusion criteria. Outcomes included fertility (n = 5), irregular menstrual cycle (n = 1), early menopause (n = 1), endometriosis (n = 1), and serum hormones (n = 1). Study findings included that women with high job demands and low job control were less likely to conceive, and working over 40 h per week and frequent heavy lifting, and rotating night shift work increased the risk of earlier menopause. Studies on night shift/rotating work and fertility outcomes showed no significant differences., Conclusion: This review underscores the insufficient high-level evidence regarding the association of psychosocial factors at work with fertility and menstrual disorders, emphasizing the necessity for future well-designed studies., (© 2024 The Author(s). Japan Journal of Nursing Science published by John Wiley & Sons Australia, Ltd on behalf of Japan Academy of Nursing Science.)

Introduction: Participatory organizational interventions to improve psychosocial working conditions are important for a safe and healthy work environment. However, there are few systematic reviews or meta-analyses investigating the effects of these interventions on workers' mental health and work-related outcomes. We intend to apply the protocol for systematic review and meta-analysis to examine the effect of participatory organizational intervention on mental health and work performance., Methods and Analysis: The participants, interventions, comparisons, and outcomes (PICO) of the studies in this systematic review and meta-analysis are defined as follows: (P) inclusion of all workers, (I) participatory organizational intervention, (C) treatment as usual or no intervention (including waitlist control), and (O) mental health and work performance. Published studies will be searched using the following electronic databases: PubMed, Embase, PsycINFO, PsycArticles, and Japan Medical Abstracts Society. Studies that (1) include participatory organizational intervention, (2) include participants who were working as of the baseline survey period, (3) assess mental health or work performance outcomes, (4) use a cluster randomized controlled trials design, (5) are published in English or Japanese, and (6) are published in peer-reviewed journals (including advanced online publication) will be included. Study selection and the risk-of-bias assessment will be performed independently by 2 reviewers. A meta-analysis will be performed to statistically synthesize the included studies. Publication bias will be assessed for meta-bias using Egger's test as well as visually on a funnel plot. We will assess heterogeneity by using the Q statistic., (© The Author(s) [2024]. Published by Oxford University Press on behalf of Journal of Occupational Health.)

Objective: There is little evidence that workplace social support can relieve workers' mental health problems. Therefore, we examined whether social support from coworkers and supervisors was associated with reduced serious psychological distress among employees., Methods: We used two-wave panel data from 13 Japanese companies. The baseline survey was conducted in 2011, and the follow-up survey 1 year later. From 9889 respondents, we selected 759 who had psychological distress at baseline, defined as ≥13 on the Kessler Psychological Distress Scale (K6)., Results: Increased coworker support was significantly associated with employees' reduced psychological distress (odds ratio, 3.51; 95% confidence interval, 2.17 to 5.68). The association between increased supervisor support and reduced psychological distress was nonsignificant (odds ratio, 1.32, 95% confidence interval, 0.85 to 2.04)., Conclusion: Encouraging coworker support may contribute to the secondary prevention of mental health problems among employees., Competing Interests: Conflicts of interest: none declared., (Copyright © 2022 American College of Occupational and Environmental Medicine.)

Introduction: Workplace environment, especially psychosocial factors at work such as job strain, workplace social support, and shift work, may affect the menstrual abnormalities and fertility of female workers. However, the association between psychosocial factors at work and menstrual abnormalities or fertility is not well understood. To address this relationship, we will conduct a systematic review and a meta-analysis of the literature that has utilized a longitudinal or prospective cohort design., Methods and Analysis: The inclusion criteria for this systematic review and meta-analysis are defined as follows: (P) adult female workers (over 18 years old), (E) the presence of adverse psychosocial factors at work, (C) the absence of adverse psychosocial factors at work, and (O) any menstrual cycle disorders, menstrual-related symptoms, or fertility. The MEDLINE, Embase, PsycINFO, PsycArticles, and Japan Medical Abstracts Society electronic databases will be used to search for published studies. The statistical synthesis of the studies included in the meta-analysis will be conducted to estimate pooled coefficients and 95% CIs. For the main analysis, we will synthesize measures of association between psychosocial factors at work and menstrual-related disorders/symptoms. At least three eligible studies will have to be gathered to conduct a meta-analysis; otherwise (i.e., if only one or two studies will be eligible and included), the results will be presented in a narrative table. We will use the Risk of Bias in Non-randomized Studies of Interventions (ROBINS-I) to determine the quality of selected studies. To assess meta-bias, Egger's test, along with a funnel plot, will be used to check for publication bias. Lastly, we will examine heterogeneity using the χ 2 test with Cochran's Q statistic and I 2 ., Ethics and Dissemination: The results and findings will be submitted and published in a scientific peer-reviewed journal and will be disseminated broadly to researchers and policymakers interested in the translatability of scientific evidence into good practices., Systematic Review Registration: The study protocol was registered at the UMIN registry (registration number: UMIN000039488). The registration date is on 14 Feb 2020. URL: https://upload.umin.ac.jp/cgi-bin/ctr/ctr_view_reg.cgi?recptno=R000044704., (© 2022. The Author(s).)

Objectives: This study aimed to investigate the work-related health and social problems among Japanese female workers and the expected research in the workplace., Method: A cross-sectional study using an Internet survey was conducted on female workers in Japan. Using an original questionnaire, we obtained data on "a system that can be used by female workers," "female workers' problems (physical symptoms, mental symptoms, menstrual problems, pregnancy/childbirth problems, work-life balance, etc.)," and "expected research in the workplace." The last two were compared using the chi-square test and considering demographic characteristics (age, marital status, having children, having preschool children, employment status, occupation). We conducted the chi-square test to examine the relationship between the presence of symptoms and four expected studies. The survey was carried out in July 2019 by using a patient and public involvement (PPI) framework in medical research., Results: We obtained 416 responses that highlighted that those who have work-related problems also have physical symptoms (89%), menstrual problems (65%), psychiatric symptoms (49%), and work-life balance problems (39%), followed by career as well as pregnancy and childbirth concerns (38%). Regarding the system, the respondents' usage rate was an infertility treatment communication card (0%), flextime and telework (1 to 3%), menstrual leave (4%), and short-time work system (8%). Expected workplace studies included "Research to ease stiff shoulders and back pain" (45%), "Research to improve women's mental health" (41%), "Research on menstruation and work performance" (35%), and "Research to improve work-life balance" (34%). Expectations for research on "mental health" and "menstruation" were high among subjects in their 20s and 30s, with no spouse or children, and working full-time. Among those who lived with preschoolers, expectations for research on "mental support after childbirth," "physical support after childbirth," and "prevention of postpartum depression" were significantly higher, but research related to work-life balance was not remarkably different. There was a significant association between having menstrual problems, work-life balance challenges, and study expectations. However, the percentage of those experiencing certain symptoms who expected workplace studies was about 48%., Conclusions: Menstruation-related symptoms are frequently observed to make work difficult and it is expected that health issues, such as mental and physical conditions related to gynecology, will be the subject of future research regarding female workers. However, discrepancies between having difficulties and whether or not they wish to accept research in the workplace should be carefully considered in each context.

We conducted a systematic review and meta-analysis to evaluate the prospective effect of adverse work-related psychosocial factors on increases in inflammatory markers. A systematic literature search was conducted in PubMed, Embase, PsycINFO, PsycARTICLES, and the Japan Medical Abstracts Society database. Studies were eligible for inclusion if they examined associations between work-related psychosocial factors and inflammatory markers (interleukin-6, tumor necrosis factor-alpha, and C-reactive protein), used longitudinal or prospective cohort designs, were conducted among workers, were original articles written in English or Japanese, and were published up to 2017 for the first search, October 2020 for the second, and November 2022 for the third. A meta-analysis was conducted using a random-effects model to assess the pooled effect size for the associations. A meta-regression analysis was used to estimate the association between length of follow-up and effect size. The ROBINS-I tool was used to assess risk of bias. Of the 11,121 studies identified in the first search, 29,135 studies from the second, and 9448 studies from the third, eleven were eligible for this review and meta-analysis. The pooled coefficient between adverse work-related psychosocial factors and inflammatory markers was significant and positive (β = 0.014, 95% confidence interval: 0.005–0.023). However, a clear association was only observed for interleukin-6, and all the studies included had serious risks of bias. Meta-regression showed the effect size decreased depending on the follow-up period. This study revealed a weak positive association between adverse work-related psychosocial factors and increases in inflammatory markers. Trial registration: PROSPERO CRD42018081553 (https://www.crd.york.ac.uk/PROSPERO/display_record.php?RecordID=81553). • We evaluated impact of work-related psychosocial factors on inflammatory markers. • The inflammatory markers included CRP, TNF-α, and IL-6. • The eleven research were eligible for the review and meta-analysis. • Adverse work-related psychosocial factors positively associated with increased inflammatory markers. • The association between length of follow-up and effect size was slightly negative. [ABSTRACT FROM AUTHOR]