Weight gain in relation to night work among nurses.
OBJECTIVE
To investigate the relationship between working at night and increased body weight in nursing. In addition, we evaluated the differences in the proportion of variables sociodemographic, work and health, according to the work shift and their association with body mass index.


METHODS
Based on questionnaires, we obtained data from 446 nursing professionals about aspects of their job, health and lifestyle. We performed linear and logistic regression analysis.


RESULTS
Working at night is associated with a weight gain greater than (β=0.24 kg/m2) working during the day (β=0.15 kg/m2), as well as with aging (β=0.16 kg/m2) and duration of working in nursing (β=0.18 kg/m2). Night workers have a higher educational level, have been working for more years in nursing and also in the current shift, do not have diabetes and have reported longer sleep than day workers. There are also a higher number of smokers among the night workers than day workers. Logistic regression analysis also showed the more time to work in nursing and as an assistant was more likely to develop overweight/obesity.


CONCLUSIONS
Working at the night contributes to more weight gain than the day shift, aging and duration of working in nursing.
Departamento de Saúde Ambiental, Faculdade de Saúde Pública, Universidade de São Paulo, Av. Dr. Arnaldo, 715, Zip Code 01246-904, São Paulo, SP, Brazil. ecmarqueze@usp.br
Elaine C
EC
Marquezea
Lucia C
LC
Lemosa
Nilson
N
Soaresa
Geraldo
G
Lorenzi-Filhob
Claudia R C
CR
Morenoa
D000328:Adult; D015992:Body Mass Index; D016001:Confidence Intervals; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D009741:Nursing Staff, Hospital; D011795:Surveys and Questionnaires; D015430:Weight Gain; D014940:Work Schedule Tolerance / Q000502:physiology*