Premium
Night work is related to higher global and central adiposity in Brazil: National Health Survey, 2013
Author(s) -
Correia Francisco G. S.,
Ferreira Marcelo J. M.,
Giatti Luana,
Camelo Lidyane V.,
Araújo Larissa F.
Publication year - 2020
Publication title -
american journal of industrial medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 104
eISSN - 1097-0274
pISSN - 0271-3586
DOI - 10.1002/ajim.23054
Subject(s) - waist , medicine , overweight , body mass index , obesity , demography , odds , national health and nutrition examination survey , cross sectional study , odds ratio , abdominal obesity , environmental health , logistic regression , multinomial logistic regression , gerontology , population , pathology , sociology , machine learning , computer science
Abstract Background Night work can disturb the natural circadian rhythm, leading to disruptions in metabolic rate and subsequent overall gain weight or even more harmful abdominal adiposity. Our aims were to investigate the associations between night work frequency and markers of overall and central obesity. Methods We conducted a cross‐sectional analysis of data from the Brazilian National Health Survey on over 35 500 current workers. Exposure to current night work was composed of three categories: daytime work (reference category), less than one night per week, and more than two nights per week. The body mass index and waist circumference were used as adiposity markers. Logistic and multinomial regression models were used, with adjustment for demographic characteristics, work conditions, self‐related health, and health‐related behaviors. Results After complete adjustment, individuals who worked two or more nights a week had higher odds of overweight (odds ratio [OR]: 1.20, 95% CI: 1.04‐1.38), obesity (OR: 1.38, 95% CI: 1.17‐1.64) and increased waist circumference (OR: 1.27, 95% CI: 1.10‐1.46) than daytime workers. Conclusions Night work was significantly associated with measures of adiposity. Changes in working conditions, such as controlling the numbers of nights worked per week or promoting workplaces with healthy meals and the opportunity to perform physical exercise at work, could be suggested.