Revista brasileira de medicina do trabalho : publicacao oficial da Associacao Nacional de Medicina do Trabalho-ANAMT
Prevalence of night work in the Brazilian employed population
By Dos Santos Júnior CJ and Fischer FM.
Abstract
Introduction
Night work and extended work schedules are among the leading occupational health risk factors.
Objectives
To estimate the prevalence of night work among the employed Brazilian population.
Methods
Cross-sectional, population-based study using data from the 2019 Brazilian National Survey of Health. Individuals aged 15 years or older who belonged to the economically active employed population were included. The outcome was self-reported night work, assessed using a survey question on work performed between 8:00 p.m. and 5:00 a.m. Responses were recorded as 0 = no and 1 = yes. Prevalence estimates and their 95% CIs were calculated accounting for the complex survey design according to sociodemographic, occupational, and state-level characteristics. Associations were evaluated using the Rao-Scott adjusted Pearson chi-square test.
