Association of psychosocial factors at work with fertility and menstrual disorders: A systematic review.

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.

Reliability and validity of the Japanese version of the Overwork Climate Scale.

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.

[Development of the Japanese version of the Public Service Motivation Scale: reliability and validity].

Objectives: Since the 1990s, overseas research on public service motivation (PSM), a motivation unique to public employees, has been ongoing. However, only recently has empirical studies on PSM in Japan begun, it has been suggested that the PSM scales developed overseas cannot be applied directly to Japan. This study aimed to examine the constructs of PSM in Japan, develop a scale to measure PSM, and verify its reliability and validity.

Corrigendum: What kind of intervention is effective for improving subjective well-being among workers? A systematic review and meta-analysis of randomized controlled trials.

[This corrects the article DOI: 10.3389/fpsyg.2020.

[Development and validation of the University of Tokyo Occupational Mental Health leadership checklist among occupational health specialists].

Objectives: Recently, occupational health specialists (OHS) are expected to exert leadership to develop high-quality occupational health activities. This study aimed to develop and investigate the reliability and validity of a scale to measure leadership preparation among OHS (The University of Tokyo Occupational Mental Health [TOMH] Leadership Checklist; TLC).

Methods: Based on literature reviews and interviews among OHS, we created potential items consisting of 54 items with six factors (10 items for self-awareness, 10 items for situational awareness, 9 items for vision, 12 items for mindset, 3 items for performance of one's duties, and 10 items for relationship-building).

Work-related psychosocial factors and inflammatory markers: A systematic review and meta-analysis.

Objective: We conducted a systematic review and meta-analysis to evaluate the prospective effect of adverse work-related psychosocial factors on increases in inflammatory markers.

Methods: 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.

Characteristics of long working hours and subsequent psychological and physical responses: JNIOSH cohort study.

Objectives: This study aimed to examine the prospective association among objectively measured average working hours (AWHs), frequency of long working hours (FLWHs; defined as ≥205 working hours/month (≥45 hours/week)) for 6 months, and workers' self-reported psychological and physical health.

Methods: The study included 15 143 workers from 5 Japanese companies. We collected monthly attendance records over 6 months before distributing a questionnaire survey on psychological/physical stress responses and work-related demographics.

Happiness Detected by the Emotion Cognition System Is Associated with Burnout in an Information Technology Products and Services Trading Company.

(1) Background: Although many previous studies have found an association between burnout and emotions, none have examined the association between emotions detected by an emotion cognition system and burnout. The purpose of this study is to examine the relationship between the emotions detected by the emotion cognition system and burnout among workers. We hypothesized that burnout survivors are less likely to express their emotions as facial expressions.

Usage of the Brief Job Stress Questionnaire: A Systematic Review of a Comprehensive Job Stress Questionnaire in Japan from 2003 to 2021.

The Brief Job Stress Questionnaire (BJSQ) is used widely in occupational health studies and practice. Summarizing scientific production based on measurement is crucial. This study aimed to systematically review observational studies that used the BJSQ and the New BJSQ to show their usability.

The impact of workplace psychosocial factors on menstrual disorders and infertility: a protocol for a systematic review and meta-analysis.

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.

Reliability and validity of the Japanese version of the psychological safety scale for workers.

Although an increasing number of studies on psychological safety at workplaces has been conducted in both western and eastern countries, there are few empirically validated measures in Japan. Our purpose was to investigate the validity and reliability of the Japanese version of the Psychological Safety Scale. Japanese workers were invited to participate in online surveys at baseline and at one-month follow-up (N=320).

Giving social support at work may reduce inflammation on employees themselves: a participatory workplace intervention study among Japanese hospital nurses.

Previously, we reported that the participatory workplace intervention was effective in reducing stress-related inflammatory markers among 31 Japanese female nurses. During the analysis, we recognized that our intervention might have increased prosocial behaviors like giving social support to others in some participants. Based on this assumption, we ran a secondary analysis, which examined the effect of giving social support on inflammatory markers, autonomic nervous activity (ANA), and perceived job stress (PJS) before and after the intervention.

Health problems associated with single, multiple, and the frequency of months of objectively measured long working hours: a cohort study by the National Institute of Occupational Safety and Health, Japan.

Purpose: We aimed to examine the prospective associations of monthly working hours measured in a month, the 6-month averaged hours, and the frequency of long working hours (≥ 205 h/month) during the past 6 months with health indicators.

Methods: This study included 6,806 Japanese company workers (response rate = 86.6%).

Effects of participatory workplace improvement program on stress-related biomarkers and self-reported stress among university hospital nurses: a preliminary study.

Although participatory workplace improvement programs are known to provide favorable effects on high stress occupations like nursing, no studies have confirmed its effect using biomarkers. The aim of this study was to determine whether a participatory workplace improvement program would decrease stress-related symptoms as evaluated by biomarkers and self-reported stress among hospital nurses. Three actions to alleviate job stress, which were determined through focus group interviews and voting, were undertaken for two months.

Objective and Subjective Working Hours and Their Roles on Workers' Health among Japanese Employees.

Table 3 of the above paper appeared incorrectly in print. Percentage figures on the table were inadvertently listed as negative values. These errors were corrected in online versions of this paper, as shown below.

Servant Leadership in Japan: A Validation Study of the Japanese Version of the Servant Leadership Survey (SLS-J).

Purpose: The purpose of this study is to develop and validate a Japanese version of the Servant Leadership Scale and to clarify the relationship between servant leadership (SL) and well-being among Japanese workers.

Methods: After the Japanese version of the SLS (SLS-J) and of its short form (SLS-J-short) were developed in conformity with the guidelines (Wild et al., 2005), a web-based survey was administered to 516 Japanese employees (20 or older and have a supervisor).

Objective and subjective working hours and their roles on workers' health among Japanese employees.

This study investigated the correlation between objective and subjective working hours (OWH and SWH, respectively) and their relation to the workers' health. The study included 6,806 workers of a Japanese company (response rate=86.6%).

Association between psychosocial factors at work and health outcomes after retirement: a protocol for a systematic review and meta-analysis.

Introduction: The world's population is rapidly ageing, and health among older people is thus an important issue. Several previous studies have reported an association between adverse psychosocial factors at work before retirement and postretirement health. The objective of this systematic review and meta-analysis is to examine the association between psychosocial factors at work and health outcomes after retirement, based on a synthesis of well-designed prospective studies.

Measuring eudemonic well-being at work: a validation study for the 24-item the University of Tokyo Occupational Mental Health (TOMH) well-being scale among Japanese workers.

Although the eudemonic perspective seems to be a promising in considering vocational identity among working population, well-being at work has been discussed primarily in terms of subjective/hedonic well-being. This study aimed to develop a new tool to measure eudemonic well-being at work (The University of Tokyo Occupational Mental Health [TOMH] well-being 24 scale)and investigate its validity in a collectivist culture. Two online surveys were conducted with a total of 1,760 workers in Japan.

[Readiness factors to improve the work environment using an employee participatory approach: Development and validation of readiness state checklist].

Objectives: The employee participatory approach is an effective method for improving work environments. However, there are some challenges in executing this method in each workplace because of such factors as a lack of employee interest or motivation to commit to the activity. Research was conducted to clarify readiness factors to improve the workplace environment using an employee participatory approach.

Reliability and validity of the Japanese version of the Feedback Environment Scale (FES-J) for workers.

The study objectives were to develop a Japanese-language version of the Feedback Environment Scale (FES) that is used, mainly in the West, as a multifaceted instrument to evaluate the workplace feedback environment, and to test its reliability and validity in the Japanese workplace. The FES (comprising Supervisor and Coworker FES) was translated into Japanese and reviewed through a back-translation process involving the original author to produce the FES-J. Data on 416 individuals working at Japanese companies obtained through internet research were used to investigate FES-J reliability (internal consistency) and validity (confirmatory factor analysis and correlation analysis).