Showing papers in "Journal of Occupational Health in 2021"

Associations of working from home with occupational physical activity and sedentary behavior under the COVID-19 pandemic.

Abstract: OBJECTIVES: To compare physical activity (PA) and sedentary behavior (SB) levels during work time between those who work from home (WFH) and at workplaces (no WFH), and by WFH subgroups. METHODS: This cross-sectional internet-based survey included 1239 workers (mean age [standard deviation], 44.7 [13.7] years; 59.2% men) living in the Tokyo Metropolitan Area. Time spent sitting (SB), standing (light-intensity PA; LPA), walking, and engaging in heavy labor (moderate-to-vigorous PA; MVPA) during work time was measured using the Work-related Physical Activity Questionnaire. Workers reported weekly WFH percentages (eg, 0% implies no WFH and 100% implies full WFH), and WFH percentages were categorized into no WFH (0% WFH) and WFH (1%-100% WFH) groups. The WFH group was further subcategorized into 1%-25%, 26%-50%, 51%-75%, and 76%-100% subgroups. RESULTS: Overall, 494 workers (39.9%) worked from home. During working hours, SB time was longer in the WFH group than in the no WFH group (mean minutes [% working-time SB]: 335.7 vs 224.7 min [74% vs 50%]). Significantly shorter LPA and MVPA times (%) were reported in the WFH group than in the no WFH group (LPA, 59.6 vs 122.9 min [14% vs 29%]; MVPA, 55.3 vs 91.9 min [13% vs 22%], all P < .001). Among the WFH subgroups, longer SB time and shorter LPA and MVPA times were observed in the highest WFH group (WFH 76%-100%) than in the WFH 1%-25% and 26%-50% subgroups. CONCLUSIONS: Workers who telecommuted were less physically active and had longer sedentary during work time than those who worked at the workplaces.

Sustained poor mental health among healthcare workers in COVID-19 pandemic: A longitudinal analysis of the four-wave panel survey over 8 months in Japan.

Abstract: OBJECTIVES: This study aimed to compare the longitudinal change of the psychological distress of healthcare workers (HCWs) with non-HCWs during the repeated outbreaks of the COVID-19 in Japan. METHODS: The data were retrieved from the Employee Cohort Study in the Covid-19 pandemic in Japan study. An online survey was conducted on March 2020 (T1), on May 2020 (T2), on August 2020 (T3), and on November 2020 (T4). Psychological distress was measured by the Brief Job Stress Questionnaire. A mixed-model repeated-measures ANOVA was conducted as an indicator of the group differences. RESULTS: A total sample of analysis was n = 996 (HCWs, n = 111; non-HCWs, n = 885). HCWs consisted of physicians/nurses/midwives and other HCWs (eg, pharmacists, clinical laboratory technicians) in the clinical settings (n = 19; 17% and n = 61; 55%, respectively), and HCWs not working in the clinical settings (n = 31; 28%). Being HCWs were associated with a significant increase in psychological distress from T1 to T2, T3 and T4 (P = .001, P = .002, P < .001; respectively). CONCLUSIONS: The mental health of HCWs deteriorated through the COVID-19 outbreaks compared with non-HCWs. HCWs are continuously the important targets to provide mental health support.

Long working hours and burnout in health care workers: Non-linear dose-response relationship and the effect mediated by sleeping hours—A cross-sectional study

Abstract: Objectives Burnout among health care workers is highly prevalent and has profound impact on quality of care. Hospital on-duty schedules lead to long working hours and short sleeping hours; both are common factors associated with burnout. We examined the dose-response relationship and the potential mediating role of sleeping hours on the association between working hours and burnout among health care workers. Methods We collected data on the burnout status, using the Mandarin version of the Copenhagen Burnout Inventory (subscales measure work-related and personal burnouts), working hours, sleeping hours, and relevant measures for 2081 health care personnel who underwent a routine health examination in a medical center in Taiwan during 2016-2017. Four subgroups were compared: physicians (n = 369), nurses (n = 973), technicians (n = 391), and administrators (n = 348). Results Average weekly working hours are associated with burnout scores in a non-linear dose-response manner. Compared with a work week of 40 hours, the odds ratio of work-related burnout doubled when hours exceeded 60, tripled when hours exceeded 74, and quadrupled when hours exceeded 84. Physicians' burnout is less susceptible to incremental increases in working hours, compared to the situations in other health care workers. The proportions eliminated by reducing sleeping hours were 25%-73% for physicians and 7%-29% for nurses respectively. Conclusions Our findings suggest that working hours are associated with burnout, and the association was partially mediated by sleeping hours.

Workplace measures against COVID-19 during the winter third wave in Japan: Company size-based differences.

Abstract: OBJECTIVES: Little is known about workplace measures against coronavirus disease 2019 (COVID-19) in Japan during the winter of 2020, especially in micro-, small-, and medium-sized enterprises (MSMEs). This study aimed to provide an overview of the current situation of anti-COVID-19 measures in Japanese enterprises during the winter, considering company size. METHODS: This study was an Internet-based nationwide cross-sectional study. Individuals who were registered as full-time workers were invited to participate in the survey. Data were collected using an online self-administered questionnaire in December 2020. The chi-squared test for trend was performed to calculate the P-value for trend for each workplace measure across company sizes. RESULTS: For the 27 036 participants, across company sizes, the most prevalent workplace measure was encouraging mask wearing at work, followed by requesting that employees refrain from going to work when ill and restricting work-related social gatherings and entertainment. These measures were implemented by approximately 90% of large-scale enterprises and by more than 40% of micro- and small-scale enterprises. In contrast, encouraging remote working was implemented by less than half of large-scale enterprises and by around 20% of micro- and small-scale enterprises. There were statistically significant differences in all workplace measures by company size (all P < .001). CONCLUSIONS: We found that various responses to COVID-19 had been taken in workplaces. However, some measures, including remote working, were still not well-implemented, especially in smaller enterprises. The findings suggest that occupational health support for MSMEs is urgently needed to mitigate the current wave of COVID-19.

Impact of the COVID-19 pandemic on working students: Results from the Labour Force Survey and the student lifestyle survey.

Abstract: Objective The COVID-19 pandemic has caused devastating damage to employment globally, particularly among the non-standard workforce. The objective of this study was to identify the effects of the pandemic on the employment status and lives of working students in Japan. Methods The Labour Force Survey (January 2019 to May 2020) was used to examine changes in students' work situations. In addition, to investigate the economic and health conditions of university students during the pandemic, the Student Lifestyle Survey was conducted in late May 2020. This survey asked students at a national university in Tokyo about recent changes in their studies, work, and lives. Results The number of working students reported in the Labour Force Survey has declined sharply since March 2020, falling by 780,000 (46%) in April. According to a survey of university students' living conditions, 37% were concerned about living expenses and tuition fees, and a higher percentage of students who were aware of financial insecurity had poor self-rated health. Conclusion Nearly half of working students have lost their jobs during the pandemic in Japan, which has affected their lives, studies, and health. There is a need to monitor the impact of economic insecurity on students' studies and health over time, and to expand the safety net for disadvantaged students.

Physical relaxation for occupational stress in healthcare workers: A systematic review and network meta-analysis of randomized controlled trials.

Abstract: OBJECTIVES: Work related stress is a major occupational health problem that is associated with adverse effects on physical and mental health. Healthcare workers are particularly vulnerable in the era of COVID-19. Physical methods of stress relief such as yoga and massage therapy may reduce occupational stress. The objective of this systematic review and network meta-analysis is to determine the effects of yoga, massage therapy, progressive muscle relaxation, and stretching on alleviating stress and improving physical and mental health in healthcare workers. METHODS: Databases were searched for randomized controlled trials on the use of physical relaxation methods for occupational stress in healthcare workers with any duration of follow-up. Meta-analysis was performed for standard mean differences in stress measures from baseline between subjects undergoing relaxation vs non-intervention controls. Network meta-analysis was conducted to determine the best relaxation method. RESULTS: Fifteen trials representing 688 healthcare workers were identified. Random-effects meta-analysis shows that physical relaxation methods overall reduced measures of occupational stress at the longest duration of follow-up vs baseline compared to non-intervention controls (SMD -0.53; 95% CI [-0.74 to -0.33]; p < .00001). On network meta-analysis, only yoga alone (SMD -0.71; 95% CI [-1.01 to -0.41]) and massage therapy alone (SMD -0.43; 95% CI [-0.72 to -0.14]) were more effective than control, with yoga identified as the best method (p-score = .89). CONCLUSION: Physical relaxation may help reduce occupational stress in healthcare workers. Yoga is particularly effective and offers the convenience of online delivery. Employers should consider implementing these methods into workplace wellness programs.

Workplace violence in nursing: A concept analysis

Abstract: Objectives To clarify the concept of workplace violence in nursing and propose an operational definition of the concept. Methods The review method used was Walker and Avant's eight-step method. Results Identification of the key attributes, antecedents, consequences, and empirical referents of the concept resulted in an operational definition of the concept. The proposed operational definition identifies workplace violence experienced by nurses as any act or threat of verbal or physical violence, harassment, intimidation, or other threatening disruptive behavior that occurs at the worksite with the intention of abusing or injuring the target. Conclusions Developing insights into the concept will assist in the design of new research scales that can effectively measure the underlying issues, provide a framework that facilitates nursing interventions, and improve the validity of future studies.

Barriers and facilitators of productivity while working from home during pandemic.

Abstract: OBJECTIVES: This study aims to characterize the working environment, stress levels, and psychological detachment of employees working from home during the COVID-19 pandemic in the Philippines and investigate their relationship to productivity and musculoskeletal symptoms. METHODS: Structural equation modeling was used to examine the direct effect of workstation characteristics, stress, and musculoskeletal symptoms to productivity and the indirect effect of psychological detachment to productivity. Data were gathered from a survey of employees working from home during the pandemic from different industries (n = 352). Multigroup analysis was also conducted to determine the effect of age, having a spouse, and having children less than 18 years old, to the model. RESULTS: Ergonomic suitability of the workstation (WES) has a significant effect on musculoskeletal symptoms (MSS) (s = -0.31, SE = 0.06; p < .001). Both workstation suitability (s = -0.24, SE = 0.03; p < .001) and workstation ergonomic suitability (s = -0.18, SE = 0.01; p < .01) inversely affect STR. Psychological detachment has a significant inverse effect on stress (s = -0.31, SE = 0.07; p < .001) and stress has a significant negative effect on productivity (s = -0.13, SE = 0.09; p = .03). Multigroup analyses showed that stress significantly affected the productivity of those without spouses and young employees. CONCLUSION: Workstation suitability helps improve the productivity of people working from home while stress negatively affects it. Workstation ergonomic suitability and musculoskeletal symptoms have no significant effect.

Anticipated health effects and proposed countermeasures following the immediate introduction of telework in response to the spread of COVID-19: The findings of a rapid health impact assessment in Japan.

Abstract: OBJECTIVES: The health effects of telework, which was introduced extensively in the immediate context of the COVID-19 pandemic crisis in Japan, on teleworkers, their families, and non-teleworkers, are unknown. Accordingly, we developed a rapid health impact assessment (HIA) to evaluate positive and negative health effects of telework on these groups and recommended easily implementable countermeasures. METHODS: Immediately after an emergency was declared in Japan, we implemented a rapid, five-step HIA. We screened and categorized health effects of telework for the three above-mentioned groups, extracting their content, directionality, and likelihood. Following a scoping exercise to determine the HIA's overall implementation, five experienced occupational health physicians appraised and prioritized the screened items and added new items. We outlined specific countermeasures and disseminated the results on our website. A short-term evaluation was conducted by three external occupational health physicians and three nurses. RESULTS: Following screening and appraisal, 59, 29, and 27 items were listed for teleworkers, non-teleworkers, and family members of teleworkers, respectively, covering work, lifestyle, disease and medical care, and home and community. Targeted countermeasures focused on the work environment, business management, communications, and lifestyles for teleworkers; safety and medical guidelines, work prioritization, and regular communication for non-teleworkers; and shared responsibilities within families and communication outside families for family members of teleworkers. CONCLUSION: The HIA's validity and the countermeasures' practical applicability were confirmed by the external evaluators. They can be easily applied and adapted across diverse industries to mitigate the wider negative effects of telework and enhance its positive effects.

Health care worker burnout after the first wave of the coronavirus disease 2019 (COVID-19) pandemic in Japan.

Abstract: Objectives To determine the prevalence of burnout according to job category after the first wave of COVID-19 in Japan and to explore its association with certain factors. Methods An online cross-sectional survey of health care workers (HCWs) from June 15 to July 6, 2020, was conducted at a tertiary hospital in Tokyo, Japan. Demographic characteristics, results of the Japanese version of the Maslach Burnout Inventory-General Survey, types of anxiety and stress, changes in life and work after the peak of the pandemic, and types of support aimed at reducing the physical or mental burden, were determined. Results Of 672 HCWs, 149 (22.6%) met the overall burnout criteria. Burnout was more prevalent in women (OR, 3.11; 95% CI, 1.45-6.67, P = .003), anxiety due to unfamiliarity with personal protective equipment (PPE) (OR, 1.98; 95% CI, 1.20-3.27, P = .007), and decreased sleep duration (OR, 1.96; 95% CI, 1.20-3.20, P = .008). Conversely, participants who felt that the delivery of COVID-19-related information (OR, .608; 95% CI, .371-.996, P = .048) and PPE education opportunities (OR, .484; 95% CI, .236-.993, P = .048) and messages of encouragement at the workplace (OR, .584; 95% CI, .352-.969; p = .037) was helpful experienced less burnout. Conclusions There is a need to focus on the above factors to maintain the mental health of HCWs. The delivery of COVID-19-related information and educational interventions for PPE and messages of encouragement at the workplace may be needed to reduce the mental burden.

Health outcomes of psychosocial stress within firefighters: A systematic review of the research landscape

Abstract: Background and objectives Much of the research surrounding firefighter health has concerned the hazards intuitively associated with the occupation, such as physical, thermal, and chemical risks. However, an additional aspect of their work environment, psychosocial stressors, has begun to attract a growing level of attention. Work-related psychosocial stress may best be described as mental and emotional strain caused by a combination of workplace events and characteristics, and the objective of our review was to identify the health outcomes associated with these stressors in firefighters. Methods A systematic review was performed of studies reporting on the psychosocial stressors and the associated health outcomes experienced by firefighters. Data sources included the MEDLINE, PsychInfo, and CINAHL databases. Results Twenty-nine studies met the inclusion criteria. Upon analysis, we found that firefighters experienced a range of psychosocial stressors (including interpersonal conflict and concerns over organizational fairness) and observed that these stressors were associated with a number of health-related outcomes that could be arranged into six areas: depression-suicidality, non-depressive mental health problems, burnout, alcohol use disorders, sleep quality, and physiological parameters and somatic disorders. Conclusion Our findings strongly suggest that work-related psychosocial stressors can affect the health and well-being of those in the fire service, and highlight that interventions meant to address these psychosocial risk factors should focus upon promoting self-esteem, enhancing self-efficacy, and strengthening social support.

The relationship between working hours and lifestyle behaviors: Evidence from a population-based panel study in Korea.

Abstract: OBJECTIVES This study aimed to investigate the relationship between working hours and lifestyle behaviors using data from a large nationally representative panel survey. METHODS We used the Korea Health Panel Study (KHPS) data from 2011 to 2014. Weekly working hours and lifestyle risk factors were assessed by questionnaires. Comparing to the reference group, the weekly working hours were 40 h per week, odds ratios and 95% confidence intervals for smoking status, alcohol consumption status, and regular exercise status of other weekly working hours groups ( 52) were calculated, using generalized estimating equation models considering repeated measures. RESULTS Our findings clearly showed a relationship between long working hours and unhealthy lifestyles, such as cigarette smoking, alcohol consumption, physical inactivity, and insufficient sleep. Additionally, weekly working hours are positively associated with the amount of smoking and drinking, and inversely associated with sleep duration among those who worked 40 h or more per week. CONCLUSION Long working hours are associated with unhealthy lifestyles, such as cigarette smoking, alcohol consumption, physical inactivity, and insufficient sleep.

Road traffic delays in commuting workplace and musculoskeletal health among sedentary workers: A cross-sectional study in Dhaka city

Abstract: OBJECTIVES Despite previous research aimed at identifying factors linked to musculoskeletal health issues, there was no evidence about the relationship between road traffic delays (RTDs) and musculoskeletal health in sedentary employees. As a result, the aim of our research was to understand such a correlation among bank employees in Dhaka, Bangladesh. METHODS A cross-sectional analysis was conducted with bank employees who worked in sedentary settings. The Eriksen subjective health complaints scale was used to measure the eight items of musculoskeletal health complaints (MHCs), and RTDs were measured using principal component analysis using variables commute time, distance, and traffic congestion experience to work. The association between RTDs and MHCs was identified using a multilevel model after adjusting potential confounders. RESULTS A total of 628 employees (mean[SD] age, 36.1[7.0] years; 254[40.5%] women) participated in the study. Among the employees, the one-month prevalence of MHCs was 57.2%. The highest prevalence of MHCs was low-back pain (36.6%), followed by neck pain (22.9%) and upper-back pain (21.2%). Also, 136(21.7%) employees reported long-RTDs in commuting workplace and 81% of them had MHCs. The multilevel analysis identified that long-RTDs had a significant relationship with MHCs (adjusted odds ratio, AOR = 10.20, 95%CI = 5.41-16.91). Private transportation commuters reported 70% reduced odds of MHCs (AOR = 0.30, 95%CI = 0.15-0.59) and walking or bicycling commuters had 84% fewer MHCs (AOR = 0.16, 95%CI = 0.10-0.28) compared to public bus commuters. CONCLUSIONS Sedentary employees with long-RTDs reported increased MHCs, emphasizing the importance of including musculoskeletal exercise in office facilities. Findings of this study also highlight the need for a sound public transportation system in Dhaka city.

Work-related musculoskeletal disorders and associated risk factors among urban metropolitan hairdressers in India.

Abstract: Objectives Ergonomic hazards account for a substantial proportion of work-related diseases and injuries among hairdressers. Awkward posture during work, repetitive movements, prolonged standing, and long working periods to carry out work activities cause mechanical load on the joints and work-related musculoskeletal disorders (WMSDs). This study investigated the musculoskeletal problems among urban hairdressers and associated risk factors. Methods This study investigates the prevalence of WMSDs among 768 study subjects (384 hairdressers and control subjects each) from Ahmedabad and New Delhi metropolis in India. Univariate statistical analysis was carried out along with 95% confidence interval for effect estimates. Results Findings reveal that the nearly half of the hairdressers suffered from knee and foot pain (49.5%), followed by lower back pain (39.8%) and upper back pain (38.8%). The neck pain and shoulder pain were reported by more than 25% hairdressers. The odds of developing neck pain (OR = 2.04; 95% CI 1.37-3.06) and shoulder pain (OR = 1.85; 95% CI 1.25-2.73) were significantly higher than control. The female hairdressers were more likely to experience work-related musculoskeletal disorder (OR = 2.63; 95% CI 1.18-5.86) than male counterparts. Hairdressers within the age of 18-35 years had significantly higher occurrence of musculoskeletal disorders with longer duration of working hours at the workplace. Longer daily work hours (>12 hours) posed significantly higher risk (OR = 2.47; 95% CI 1.39-4.38) of experiencing MSD for hairdressers. Conclusion A very large proportion of hairdressers suffered with work-related musculoskeletal disorders. The long daily working hours and gender of the hairdresser are associated with increased risk of developing WMSDs.

A cross-sectional study of infection control measures against COVID-19 and psychological distress among Japanese workers.

Abstract: OBJECTIVES: This study examined the relationship between the status of infection control efforts against COVID-19 in the workplace and workers' mental health using a large-scale Internet-based study. METHODS: This cross-sectional study was based on an Internet monitoring survey conducted during the third wave of the COVID-19 epidemic in Japan. Of the 33 302 people who participated in the survey, 27 036 were included in the analyses. Participants answered whether or not each of 10 different infection control measures was in place at their workplace (eg, wearing masks at all times during working hours). A Kessler 6 (K6) score of ≥13 was defined as mild psychological distress. The odds ratios (ORs) of psychological distress associated with infection control measures at the workplace were estimated using a multilevel logistic model nested in the prefectures of residence. RESULTS: The OR of subjects working at facilities with 4 or 5 infection control measures for psychological distress was 1.19 (95% confidence interval [CI]: 1.05-1.34, P = .010), that in facilities with 2 or 3 infection control measures was 1.43 (95% CI: 1.25-1.64, P < .001), and that in facilities with 1 or no infection control measures was 1.87 (95% CI: 1.63-2.14, P < .001) compared to subjects whose workplaces had ≥6 infection control measures. CONCLUSION: Our findings suggest that proactive COVID-19 infection control measures can influence the mental health of workers.

Effects of gratitude intervention on mental health and well-being among workers: A systematic review.

Abstract: Objectives Gratitude intervention, which requires participants to engage regularly in brief activities designed to cultivate a sense of gratefulness, is known as one of the most effective positive psychological interventions. Although numerous meta-analyses and systematic reviews have been conducted on gratitude intervention, no studies have focused on the working population. This study aimed to systematically summarize the effectiveness of gratitude interventions on workers' mental health and well-being. Methods Systematic search was conducted in February 2021 using five databases. Eligible studies included randomized controlled trials implementing gratitude activities among healthy workers and measuring mental health or well-being indicators and original articles or thesis in English. Results Nine out of 1957 articles met the inclusion criteria. Eight studies adopted gratitude list interventions, showing a significant improvement in perceived stress and depression; however, the effects on well-being were inconsistent. Interventions with gratitude list four times or less did not report significant changes in any outcomes. Conclusions Most gratitude interventions incorporated a gratitude list, and some studies included gratitude activities as a part of the combined program. On the other hand, no studies focused on only behavioral gratitude expression among workers. Gratitude interventions might be effective in improving mental health, but their effects on well-being remain unclear. The total number of gratitude lists and reflections might influence the effect on mental health and well-being; however, due to the high heterogeneity of the studies, further studies are needed.

Burnout and metabolic syndrome among different departments of medical center nurses in Taiwan‐Cross‐sectional study and biomarker research

Abstract: OBJECTIVES The cross-sectional study aimed to analyze the association between burnout, work-related factors, and metabolic syndrome (Mets) in nurses from several departments of a tertiary hospital in Taiwan. Exploring biomarkers could provide for prevention. METHODS Demographic data were obtained through a written questionnaire and include the following information: gender, age, education level, psychosocial and work situations, such as departments, working hours, work shift, depression, and sleep time. Burnout was evaluated according to the Chinese Burnout inventory, Mets was evaluated according to the criteria of the National Cholesterol Education Program of Taiwan-Treatment Panel for Adults III (NCEP-ATP III). RESULTS A total of 1758 nurses participated with a median age of 35.2 years. The prevalence of burnout and Mets was 6.4% and 13.84%, respectively. The results showed that burnout induced higher risk of Mets, odds ratio (OR) 1.70 (95% confidence interval, 1.04-3.05). Other factors, such as out-patient nurses, seniority (4-10 and >10 years), working hours (51-59 h/wk), nigh shift, Brief Symptom Rating Scale-5 (score 10-14 and ≧15), poor self-rated health status, and inadequate sleep time, led to higher risk of Mets. Biomarkers research showed that Glycated hemoglobin (Hba1c) was significantly associated with burnout nurses (OR = 24.72, P < .001), but thyroid-stimulating hormone and free thyroxin were not. CONCLUSIONS Results suggested positive associations between burnout and Mets in nurses. For nurses with higher seniority, long hours of work, night shifts, poor physical and mental conditions, and poor lifestyle habits in different departments, strategies are needed to prevent burnout and Mets.

The potential of using hair cortisol to measure chronic stress in occupational healthcare; a scoping review.

Abstract: OBJECTIVES: Workplace-based selective prevention of mental health problems currently relies on subjective evaluation of stress complaints. Hair cortisol captures chronic stress responses and could be a promising biomarker for the early identification of mental health problems. The objective was to provide an overview of the state-of-the-art knowledge on the practical value of hair cortisol in the occupational setting. METHODS: We performed a scoping review of cross-sectional and longitudinal studies in PubMed, Embase, and PsycINFO up to November 2019 assessing the relations of hair cortisol with work-related stressors, perceived stress, and mental health outcomes in healthy workers. RESULTS: We found five longitudinal studies, of which two observed an increase in work-related stressors to be associated with higher hair cortisol, one found a relation with lower hair cortisol and one did not find a relationship. Findings of cross-sectional studies were also mixed. The one available longitudinal study regarding mental health showed that hair cortisol was not related to depressive symptoms. CONCLUSIONS: Hair cortisol measurement within occupational health research is still in its early stage and more longitudinal studies are urgently needed to clarify its relationship with work-related stressors and perceived stress before hair cortisol can be used to identify workers at risk for mental health problems.

A cross-sectional study of the association between frequency of telecommuting and unhealthy dietary habits among Japanese workers during the COVID-19 pandemic.

Abstract: OBJECTIVE: Due to the COVID-19 pandemic, telecommuting has become a new way of working that has not only changed individuals' work, but also their health and lifestyle. We examined the relationship between telecommuting frequency and unhealthy dietary habits among Japanese workers. METHODS: A total of 33,302 workers completed an Internet survey about telecommuting and dietary habits. Data from 13,468 office workers who telecommuted were analyzed. Telecommuting frequency during the COVID-19 pandemic was extracted from a questionnaire. The odds ratios (ORs) of four types of dietary habits, namely, skipping breakfast, solitary eating, lower meal frequency, and meal substitution associated with telecommuting frequency were estimated using multilevel logistic regression nested in the prefecture of residence to control for differences in residential area. RESULTS: The multivariate OR of skipping breakfast was 1.15 (95% CI: 1.03-1.29, p = .013) for participants who telecommuted in excess of four days per week compared to those who rarely telecommuted. Similarly, the OR of solitary eating, lower meal frequency and meal substitution were 1.44 (95% CI: 1.28-1.63, p < .001), 2.39 (95% CI: 1.66-3.44, p < .001), and 1.26 (95% CI: 1.04-1.51, p = .015) for those who telecommuted in excess of four days per week compared to those who rarely telecommuted. There was a statistically significant increase in the dose-response trend in ORs of solitary eating (p for trend <.001), lower meal frequency (p for trend <.001), and meal substitution (p for trend = .001) with increasing telecommuting frequency. CONCLUSION: Telecommuters may develop unhealthy dietary habits, indicating the need for strategies to help telecommuters manage their nutrition and diet.

Elbow tendinopathy and occupational biomechanical overload: A systematic review with best-evidence synthesis

Abstract: Objectives To evaluate the evidence of an association between occupational and non-occupational exposure to biomechanical risk factors and lateral elbow tendinopathy, medial elbow tendinopathy, and olecranon bursitis. Methods We carried out a systematic review of the literature. We searched MEDLINE (up to November 2019) and checked the reference lists of relevant articles/reviews. We aimed to include studies where (a) the diagnosis was based on physical examination (symptoms plus clinical signs) and imaging data (if any); and (b) the exposure was evaluated with video analysis and/or direct measurements. A quality assessment of the included studies was performed along with an evaluation of the level of evidence of a causal relationship. Results We included four studies in the qualitative synthesis: two prospective cohorts and two cross-sectional studies. All the included studies investigated "lateral/medial epicondylitis", albeit the diagnosis was not supported by imaging techniques. Two cohort studies suggested that a combination of biomechanical risk factors for wrist/forearm is associated with increased risk of "lateral epicondylitis". This association was not observed in the two included cross-sectional studies. The cohort studies suggested that a Strain Index score higher than 5 or 6.1 could double the risk of "lateral epicondylitis". No association with increased risk of "medial epicondylitis" was observed. Conclusions There is limited evidence of a causal relationship between occupational exposure to biomechanical risk factors and lateral elbow tendinopathy. For medial elbow tendinopathy, the evidence is insufficient to support this causal relationship. No studies on olecranon bursitis and biomechanical overload were identified.

Mortality risks among blue- and white-collar workers: A time series study among Japanese men aged 25-64 years from 1980 to 2015

Abstract: Objective We aimed to analyse age-standardised mortality trends in Japan among blue- and white-collar male workers aged 25-64 years, by major causes of mortality from 1980 to 2015. Methods Five-yearly mortality data were extracted from occupation-specific vital statistics maintained by the Japanese Ministry of Health, Labour and Welfare. A time series study was conducted among employed men aged 25-64 years. Age-standardised mortality trends by occupational category were calculated separately for all cancers, ischaemic heart disease, cerebrovascular disease and suicide. Poisson regression analysis was performed to analyse mortality trends by occupational category for each cause. Results Mortality rates for all cancers and ischaemic heart disease were higher among white-collar workers than blue-collar workers throughout the 35-year study period. The gap in the mortality rates for all four causes of death among blue- and white-collar workers widened in 2000 after Japan's economic bubble burst in the late 1990s. Simultaneously, suicide mortality rates among white-collar workers increased sharply and have remained higher than among blue-collar workers. Conclusions White-collar male workers in Japan have a higher risk of mortality than male blue-collar workers. However, despite substantial differences, significant progress has been made in recent years in reducing mortality across all occupations in Japan.

Association between work style and presenteeism in the Japanese service sector

Abstract: OBJECTIVES To address ongoing problems concerning population aging and labor shortages in Japan, employers have sought to improve work efficiency and labor productivity. However, it is unclear how presenteeism is affected by working styles in line with current corporate initiatives, such as reduced working hours, varied employment status, and flexible work arrangements. The purpose of this article was to investigate the association between work style and presenteeism. METHODS This cross-sectional study extracted data from employee profiles, employee attendance records, and a questionnaire in a large service sector company. Multiple linear regression was conducted to estimate the contributions of work style variables to the Work Limitations Questionnaire (WLQ) index score. RESULTS In total, 21 500 participants were eligible for analysis. The WLQ index was lower for those working < 35 h/week (adjusted regression coefficient [ARC]:-0.35%; 95% CI: -0.48 to - 0.21) and higher for those working 40-44 h/week or ≥ 45 h/week, compared with those working 35-39 h/week. The position of team manager was positively associated with the WLQ index, whereas senior manager (ARC: -1.44%; 95% CI: -1.71 to - 1.17) and part-time staff (ARC: -1.75%; 95% CI: -1.98 to - 1.52) positions were negatively associated with the WLQ index, compared with non-managers. Those who worked remotely had significantly lower WLQ index scores (ARC: -0.61%; 95% CI: -0.95 to - 0.27). CONCLUSIONS Reduced working hours and flexible work arrangements were associated with lower work limitations, which imply presenteeism, although additional research is necessary to verify these results.

The mediating effect of exhaustion in the relationship between effort-reward imbalance and turnover intentions: A 4-year longitudinal study from Sweden.

Abstract: Objectives Earlier studies suggest that imbalance between effort and reward at work associates with exhaustion. Others have found that exhaustion increases turnover intentions; an important precursor of actual turnover that also associates with counterproductive work behaviors. Few, however, have studied the associations between effort-reward imbalance (ERI) and employees' intentions to leave their current employment, and whether exhaustion is underpinning that relationship. Here, we investigate the mediating role of exhaustion in the effort-reward imbalance - turnover intentions relationship. Methods Data from three waves covering a time span of four years from the Swedish Longitudinal Occupational Survey of Health (SLOSH) were analysed using structural equation modeling. Cross-lagged mediation analyses were conducted to estimate if associations from ERI to subsequent turnover intentions were mediated by exhaustion. Other causal directions (direct and reversed direct effects, reversed mediation) were also examined. Results A direct path from ERI T1 to turnover intentions T2 was found, but not from ERI T2 to turnover intentions T3. Additionally, results showed that ERI at time points T1/T2 associated significantly with exhaustion two years later (T2/T3). Also, exhaustion at T1 showed a small but statistically significant direct association with turnover intentions at T2 (no association was found between exhaustion T2 and turnover intentions T3). A small, but statistically significant indirect effect from ERI to turnover intentions was found (estimate 0.005; 95% CI 0.002-0.010). Conclusions Providing a good balance between effort and reward for workers is essential to protect employee health and help retain employees in the organization.

A comparison of work environment, job insecurity, and health between marginal part-time workers and full-time workers in Denmark using pooled register data.

Abstract: OBJECTIVES This study aimed to evaluate characteristics of the work environment, job insecurity, and health of marginal part-time workers (8.0-14.9 hours/week) compared with full-time workers (32.0-40.0 hours/week). METHODS The study population included employees in the survey Work Environment and Health in Denmark (WEHD) in 2012, 2014, or 2016 (n = 34 960). Survey information from WEHD on work environment and health was linked with register-based information of exposure based on working hours 3 months prior to the survey, obtained from the register Labour Market Account. Associations between marginal part-time work and work environment and health were assessed using logistic regression models. RESULTS Marginal part-time workers reported less quantitative job demands, lower levels of influence at work, poorer support from colleagues and leaders, less job satisfaction and poorer safety, as well as more job insecurity. Results on negative social relations in the workplace and physical workload were more ambiguous. Marginal part-time workers were more likely to report poorer self-rated health, treatment-requiring illness, and depressive symptoms compared with full-time workers. Adjusting for characteristics of the work environment showed an indication of altered odds ratios for self-rated health and depressive symptoms, whereas job insecurity did not. CONCLUSIONS This study finds that marginal part-time workers experience a poorer psychosocial work environment and safety, higher job insecurity, and poorer health than full-time workers. Work environment characteristics may confound or mediate the association between marginal part-time work and health. However, prospective studies are needed to determine the causal direction of the revealed associations.

Sitting for long periods is associated with impaired work performance during the COVID-19 pandemic.

Abstract: Objectives The unprecedented coronavirus disease 2019 (COVID-19) pandemic and the corresponding government state of emergency have dramatically changed our workstyle, particularly through implementing teleworking and social distancing. We investigated the degree to which people's work performance is affected and the association between sedentary behavior under the state of emergency and worsened work performance during the COVID-19 pandemic, as previous studies have suggested that sedentary behavior decreases work performance. Methods We used data from the Japan "COVID-19 and Society" Internet Survey (JACSIS) study, a cross-sectional, web-based, self-reported questionnaire survey. The main outcome was change in work performance after the COVID-19 pandemic compared with that before the pandemic. We analyzed the association between the change in work performance and sitting duration under the state of emergency, adjusted for work-related stress, participants' demographics, socio-economic status, health-related characteristics, and personality. Results The change of work environment from the pandemic decreased work performance in 15% of workers, which was 3.6 times greater than the number of workers reporting increased performance in 14 648 workers (6134 women and 8514 men). Although telework both improved and worsened performance (odds ratio [OR], 95% confidence interval [CI] = 2.0, 1.6-2.5 and 1.7, 1.5-1.9, respectively), sitting for long periods after the state of emergency was significantly associated only with worsened performance (OR, 95% CI = 1.8, 1.5-2.2) in a dose-response manner. Conclusion Sitting duration is likely a risk barometer of worsened work performance under uncertain working situations, such as the COVID-19 pandemic.

A Guide for Businesses and Employers Responding to Novel Coronavirus disease (COVID-19): 4th edition.

Abstract: The Japanese Society of Travel and Health (JSTH) and the Japanese Society for Occupational Health (JSOH) have compiled "Novel Coronavirus Information" together as a joint document, which has been shared with the public on their respective websites since February 2020 In May 11, 2020, this document was to be published as "A Guide for Businesses and Employers Responding to Novel Coronavirus Disease (COVID-19)" (hereinafter referred to as "this Guide") This Guide was prepared for persons in charge of COVID-19 control measures in their workplace It should be used at the discretion of each business operator according to their workplace environment The examples of infection control measures shown in this Guide are not guaranteed to work for all situations, and they do not limit or bind actual measures being put in place When selecting actual measures, it is necessary to obtain new information and thoroughly understand individual cases and situations This Guide was prepared based on findings and reports about the virus and response measures taken by the relevant ministries (Ministry of Health, Labour and Welfare, Ministry of Foreign Affairs, etc) that could be confirmed as of December 15, 2020 Therefore, the contents of this Guide may need to be modified in the future, depending on changes in the situations mentioned above In the preparation of this Guide, every effort has been made to ensure the accuracy of currently obtainable information However, neither JSTH or JSOH shall be held liable for any unfavorable circumstance, such as loss and damage (including lost profits and various expenses), harmful rumors, etc experienced by a business operator, his/her employees, and any other persons concerned as a result of various measures considered/implemented using this Guide by persons responsible for infection control in the workplace

Protective effects of vitamins/antioxidants on occupational noise-induced hearing loss: A systematic review

Abstract: Objectives: Occupational noise-induced hearing loss (NIHL) due to industrial, military, and other job related noise exposure can cause harmful health issues to occupied workers, but may also be potentially preventable. Vitamins/antioxidant have been studied as therapeutic strategies to prevent and/or delay the risks of human diseases as well as NIHL. So, this study was conducted to systematically review the protective effects of vitamins/ antioxidants on occupational noise induced hearing loss. Methods: Online databases including PubMed/Medline, Scopus, Web of Science, EMBASE, Science Direct, and Google Scholar were systematically searched up to 12.January 2021. Based on 6336 potentially relevant records identified through the initial search in the databases, twelve full-text publications were retrieved, one of which can be viewed as two separate trials, because it has studied the effects of two different antioxidants (Ginseng and NAC) on NIHL, separately. Results: A review of the studies show that vitamin B12, folic acid, and N-acetylcysteine (NAC) have a considerable protective effect on NIHL. However, these protective effects are not yet specified in different frequencies. The findings regarding the protective effects of other antioxidants are inconsistent in this field. Conclusion: Vitamin B12, folic acid, and NAC may have a protective effect as an antioxidant on reducing occupational hearing loss. For a conclusive evidence of vitamins/antioxidants protective therapies, future studies with precise criteria for noise exposure and similar outcome parameters are required.

A cross-sectional study of socioeconomic status and treatment interruption among Japanese workers during the COVID-19 pandemic.

Abstract: OBJECTIVES: The COVID-19 pandemic has caused interruptions to chronic disease and non-emergency treatment. The purpose of this study is to examine which socioeconomic status groups are most at risk of treatment interruption among Japanese workers. METHODS: This cross-sectional internet monitor study was conducted among Japanese workers on December 22-26, 2020. Out of a total of 33 302 participants in the survey, 9510 (5392 males and 4118 females) who responded that they required regular treatment or hospital visits were included in the analysis. A multilevel logistic model nested in the prefecture of residence was used to estimate the odds ratio (OR) for treatment disruption. We examined separate multivariate models for socioeconomic factors, health factors, and lifestyle factors. RESULTS: During a period of rapid COVID-19 infection, about 11% of Japanese workers who required regular treatment experienced interruptions to their treatment. The OR of treatment interruption associated with not being married compared with being married was 1.44 (95%CI: 1.17-1.76); manual labor work compared with desk work was 1.30 (95%CI: 1.11-1.52); loss of employment when the COVID-19 pandemic started and continued unemployment compared with being employed over the entire pandemic period was 1.62 (95%CI: 1.13-2.31) and 2.57 (95%CI: 1.63-4.07), respectively; and feeling financially unstable was 2.92 (95%CI: 2.25-3.80). CONCLUSION: Treatment interruption is a new health inequality brought about by COVID-19 with possible medium- and long-term effects, including excess mortality, morbidity, and productivity loss due to increased presenteeism. Efforts are needed to reduce treatment interruptions among workers who require regular treatment.

Association between maternity harassment and depression during pregnancy amid the COVID-19 state of emergency.

Abstract: OBJECTIVES: Maternity harassment, known in English as pregnancy discrimination, remains prevalent in developed countries. However, research examining the mental health effects of maternity harassment is lacking. We aimed to examine the association between maternity harassment and depression during pregnancy in Japan. METHODS: A cross-sectional Internet survey was conducted on 359 pregnant employees (including women who were working at the time their pregnancy was confirmed) from May 22 to May 31, 2020, during which time a COVID-19 state of emergency was declared. Maternity harassment was defined as being subjected to any of the 16 adverse treatments prohibited by national guidelines. Depression was defined as a score of ≥9 on the Edinburgh Postnatal Depression Scale (Japanese version). Logistic regression analysis was performed. RESULTS: Overall, 24.8% of the pregnant employees had experienced maternity harassment by supervisors and/or colleagues. After adjusting for demographics, pregnancy status, work status, and fear of COVID-19, pregnant employees who experienced maternity harassment were more likely to have depression than those who did not (odds ratio 2.48, 95% confidential interval 1.34-4.60). This association was not influenced by whether they were teleworking or not as a COVID-19 measure. CONCLUSIONS: One quarter of pregnant employees experienced maternity harassment and had a higher prevalence of depression than those who did not. Being physically away from the office through teleworking may not reduce the effect of maternal harassment on depression. To protect the mental health and employment of pregnant women, employers should comply with the laws and take measures to prevent maternity harassment.

Sedentary work and breast cancer risk: A systematic review and meta-analysis

Abstract: Objectives This systematic review and meta-analysis aimed to assess sedentary work's contribution to breast cancer risk quantitatively using thorough research articles. Methods We performed a meta-analysis using a registered protocol in PROSPERO (registration number: CRD42020204629). Literature from PubMed, Embase, and Cochrane involving sedentary work and breast cancer risk was reviewed. We calculated the overall pooled risk ratios (RRs) and 95% CI with a random-effect model from the included studies. Furthermore, we performed stratified analyses by characteristics of studies. Results Thirty-one studies (13 cohort studies and 18 case-control studies) were included in the analysis. The overall effect of the pooled analysis was an RR of 1.16 (95% CI 1.08-1.23). The results were 1.20 (95% CI 1.10-1.30) and 1.12 (95% CI 1.02-1.23) for cohort and case-control studies. The effect of sedentary work did not seem to be consistently attenuated by controlling body mass index, menopausal status, or experience of hormone replacement therapy. Conclusion The results from this meta-analysis suggest that sedentary behavior within the occupational domain was associated with a 15.5% increased risk of breast cancer. It is essential to reduce the sedentary time spent at work and to secure time for leisure-time physical activity among sedentary workers as a primary preventive measure.