Gender-specific association between night-work exposure and type-2 diabetes: results from longitudinal study of adult health, ELSA-Brasil

Abstract

This gender-specific analysis showed different patterns of association between night work and diabetes for men and women. Results suggest that the effect of exposure to night work appears to take longer to manifest itself among men, highlighting the greater chances of developing diabetes particularly among female night workers.Affiliation: National School of Public Health, Oswaldo Cruz Foundation -ENSP/FIOCRUZ, Brazil. Institutional address and email: Av.

Night shift work and incidence of diabetes in the Danish Nurse Cohort

“…Vimalananda et al 9 report similar estimate to Pan et al ,8 with BMI-adjusted estimate of 23% (1.23; 1.03 to 1.47) increase in diabetes incidence in African-American women working more than 10 years night shift (11% and 9%, for those working 3–9 and 1–2 years, respectively) compared with women never working night shift 9. A stronger association was detected among female civil servants in Brazil who had a 42% (1.42; 1.39 to 1.45) higher risk of diabetes after 20 years of night shift work, compared with those who had never worked night shift work 18. Our findings are consistent with the meta-analyses by Gan et al 6 who found that associations between shift work and diabetes are stronger in Europe (1.36; 1.05 to 1.73), than the USA (1.09; 1.03 to 1.14) and in Asia (1.07; 1.03 to 1.11), although this may be due to differences in study design as discussed above 8.…”

“…In Vimalananda et al ,9 women were asked if they had ever worked a night shift (graveyard shift, from 00:00 to 8:00), and for how many years. Silva-Costa et al 18 require a minimum of four night shift per month to be classified as a night shift worker. Finally, Morikawa et al 12 compared day work only to two shift work (day and evening shifts) and three shift work (day, evening and night shift work).…”

“…Four cross-sectional studies, in 1111 retired participants from the USA,15 in 26 463 retired workers from China,16 in 1601 Japanese workers,17 and in 14 427 men and women from ELSA-Brazil cohort,18 reported positive associations between shift work and diabetes prevalence. In a recent meta-analysis, Gan et al 6 reported that diabetes risk was higher for those working rotating night shifts than those working night, mixed, evening or unspecific shifts, and called for more studies, especially on night shift work to address the limited power of existing studies, and the heterogeneity between the working time definitions used in the studies 6…”

<p>Increased Risk Of Type 2 Diabetes And Abnormal FPG Due To Shift Work Differs According To Gender: A Retrospective Cohort Study Among Thai Workers In Bangkok, Thailand</p>

“…2 Studies undertaken in the last few decades report an association between shift work and multiple chronic diseases, one of which is type 2 diabetes. [5][6][7][8][9][10][11][12][13] Shift work remains a common working schedule in certain sectors, including in the healthcare, utilities, food services, manufacturing, and transportation sectors. Approximately 21% of all workers in the European Union 14,15 are engaged in shiftwork, as are 28.7% of workers in the United States, 16 and 15-36% of workers worldwide.…”

“…17 While epidemiological evidence of the association between shift work and type 2 diabetes risk is relatively sound, evidence pertaining to the gender differential of this association remains scarce and controversial. Based on the baseline data of a Brazilian Longitudinal Study of Adult Health (ELSA-Brazil) comprising 15,105 civil servants, a recent study by Silva-costa et al, 11 reported that the association between night work and diabetes was stronger among women [(odds ratio (OR) (1.42 95% confidence interval (CI)) (1.39-1.45)] than men [OR (95% CI)=1.06 (1.04-1.08)]. In addition, a 2013 population-based cohort study by Eriksson et al, 18 involved 3205 women and 2227 men in Sweden, and used patients aged 35-56 years.…”