Work‐related psychosocial factors and metabolic syndrome onset among workers: a systematic review and meta‐analysis

Watanabe, Kazuhiro; Sakuraya, Asuka; Kawakami, Norito; Imamura, Kotaro; Ando, Emiko; Asai, Yumi; Eguchi, Hisashi; Kobayashi, Yuka; Nishida, Norimitsu; Arima, Hideaki; Shimazu, Akihito; Tsutsumi, Atsushi

doi:10.1111/obr.12725

Cited by 54 publications

(52 citation statements)

References 68 publications

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“…Among those articles, 41 (85%) used shift work as the exposure, and 12 (25%) used long work hours. The articles covered the following outcomes: cancers [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32] (16, 33%), cardiovascular disease [33][34][35][36][37][38][39][40][41] (9, 19%), metabolic syndrome, diabetes mellitus, and obesity [42][43][44][45][46][47][48][49][50] (9, 19%), complications of pregnancy [51][52][53][54][55][56][57][58] (8, 17%), depression [43,45,59] (4, 8%), hypertension [60] (1, 2%), and injuries [61] (1, 2%). Some conditions we identified to be chronic or high cost (e.g.…”

Section: Overview Of Search Resultsmentioning

confidence: 99%

Shift work and long work hours and their association with chronic health conditions: A systematic review of systematic reviews with meta-analyses

et al. 2020

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Background Previous reviews have demonstrated that shift work and long work hours are associated with increased risk for chronic conditions. However, these reviews did not comprehensively assessed the body of evidence, and some were not conducted in a systematic manner. A better understanding of the health consequences of shift work and long work hours will aid in creating policy and practice recommendations. This review revisits the epidemiologic evidence on the association of shift work and long work hours with chronic conditions with particular emphasis on assessing the quality of the evidence. Methods and findings We conducted a systematic review of systematic reviews with meta-analyses (SR-MA) that assessed the link between shift work or long work hours and chronic conditions (PROS-PERO CRD42019122084). We evaluated the risk of bias of each SR-MA using AMSTAR v2 and assessed the overall evidence for each condition using the GRADE approach. We included 48 reviews covering cancers, cardiovascular diseases, metabolic syndrome and related conditions, pregnancy complications, depression, hypertension, and injuries. On average, only 7 of 16 AMSTAR items were fulfilled. Few SR-MAs had a registered protocol and nearly all failed to conduct a comprehensive search. We found moderate grade evidence linking shift work to breast cancer and long work hours to stroke. We found low grade evidence linking both shift work and long work hours with low to moderate increase in risk for some pregnancy complications and cardiovascular diseases. Low grade evidence also link long work hours and depression. Conclusions Moderate grade evidence suggest that shift work and long work hours increase the risk of breast cancer and stroke, but the evidence is unclear on other chronic conditions. There is a

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Section: Overview Of Search Resultsmentioning

confidence: 99%

Shift work and long work hours and their association with chronic health conditions: A systematic review of systematic reviews with meta-analyses

et al. 2020

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“…Our society has witnessed an increase in the demand for 24/7 services over the past few decades despite strong evidence for its negative health effects 1. Misalignment between the behavioural circadian clock, such as altered meal timing and sleep displacement, and molecular circadian clock due to night shift work increases the risk of sleep disorders, metabolic syndrome, obesity and type 2 diabetes 2–4. Moreover, the International Agency for Research on Cancer has classified night shift work as ‘probably carcinogenic to humans’ (Group 2A) 5.…”

Section: Introductionmentioning

confidence: 99%

Rotating night shift work and non-alcoholic fatty liver disease among steelworkers in China: a cross-sectional survey

Zhang

Wang

et al. 2020

Occup Environ Med

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ObjectivesIn a 24/7 society, the negative metabolic effects of rotating night shift work have been increasingly explored. This study aimed to examine the association between rotating night shift work and non-alcoholic fatty liver disease (NAFLD) in steelworkers.MethodsA total of 6881 subjects was included in this study. Different exposure metrics of night shift work including current shift status, duration of night shifts (years), cumulative number of night shifts (nights), cumulative length of night shifts (hours), average frequency of night shifts (nights/month) and average length of night shifts (hours/night) were used to examine the relationship between night shift work and NAFLD.ResultsCurrent night shift workers had elevated odds of NAFLD (OR, 1.23, 95% CI 1.02 to 1.48) compared with those who never worked night shifts after adjustment for potential confounders. Duration of night shifts, cumulative number of night shifts and cumulative length of night shifts were positively associated with NAFLD. Both the average frequency of night shifts (>7 nights/month vs ≤7 nights/month: OR, 1.24, 95% CI 1.06 to 1.45) and average length of night shifts (>8 hours/night vs ≤8 hours/night: OR, 1.27, 95% CI 1.08 to 1.51) were independently associated with overall NAFLD after mutually adjusting for the duration of night shifts and other potential confounders among night shift workers. No significant association was found in female workers between different exposure metrics of night shift work and NAFLD.ConclusionsRotating night shift work is associated with elevated odds of NAFLD in male steelworkers.

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“…The other possible pathway is a valuepsychological factor-biomarker link. Previous research has suggested that unhealthy (or maladaptive) values may cause psychological distress as anxiety and depression (20), that could increase a risk factor for MetS (35). The association between personal values in adolescence and MetS in adulthood should be further investigated considering mediating roles of health-related behaviors and psychological distress.…”

Section: Discussionmentioning

confidence: 99%

Personal values in adolescence and their associations with metabolic biomarkers in adulthood: a population-based study in Japan

Sasaki

Watanabe

Kawakami

2020

Preprint

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Background : Personal values, which are formed in early life, can have an impact on the health outcome later in life. Objective: The aim of this study is to investigate the relationship between personal values in adolescence and bio-indicators related to metabolic syndrome (MetS) in adulthood. Participant and Methods : The longitudinal data was used from the Japanese Study on Stratification, Health, Income, and Neighborhood (J-SHINE) in 2012 and 2017. Personal values in adolescence were retrospectively obtained in 2017 from a self-reporting questionnaire, composed of value priorities and commitment to the values. Venous samples were collected in 2012 for low and high-density lipoprotein (LDL, HDL) cholesterol and hemoglobin A1c (HbA1c). Body mass index (BMI), waist circumference and systolic and diastolic blood pressure (SBP, DBP) were also measured. The associations of each variable were examined by partial correlation analysis. In addition, multiple linear regression analysis was conducted to examine overall associations between personal values and the sum of standardized scores (Z-score) of the biomarkers as a proxy of MetS. Furthermore, cluster analysis was conducted to identify groups of the participants who have some specific values and to examine their associations with the Z-score. Results : The total population (n=668) included 261 men and 407 women. Among men, the personal value priority of “Having influence on society” was associated with high HDL cholesterol (partial r=0.13, p=0.032) and “Cherishing familiar people” with low waist circumference (r=-0.129, p=0.049), low SBP, and high DBP (r=-0.135, p=0.039; r=0.134, p=0.041). In women, “Not bothering others” was associated with high SBP and low DBP (r=0.125, p=0.015; r=-0.123, p=0.017). "Economically succeeding" were associated with worse outcome (β=0.162, p=0.042). In the cluster analysis, both in men and women, the cluster which had highest openness to change value; “Having and keeping a belief”, “Exploring what you were interested in” and “Actively challenging” with the highest commitment showed worst proxy outcomes although there were no significant differences. Conclusions : Although some significant associations were found between personal values in adolescence and MetS-related markers in adulthood, overall associations were not strong. Culturally prevailing values were likely to be associated with a good outcome of metabolic health.

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Work‐related psychosocial factors and metabolic syndrome onset among workers: a systematic review and meta‐analysis

Abstract: This study reveals a strong positive association between work-related psychosocial factors and an elevated risk of metabolic syndrome onset. The effects of job strain and shift work on metabolic syndrome appear to be significant.

Cited by 54 publications

References 68 publications

Shift work and long work hours and their association with chronic health conditions: A systematic review of systematic reviews with meta-analyses

Shift work and long work hours and their association with chronic health conditions: A systematic review of systematic reviews with meta-analyses

Rotating night shift work and non-alcoholic fatty liver disease among steelworkers in China: a cross-sectional survey

Personal values in adolescence and their associations with metabolic biomarkers in adulthood: a population-based study in Japan

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