Home office is associated with weight gain during the COVID-19 pandemic: Brazilian population-based studies.

The COVID-19 pandemic caused changes in life, affecting habits and behaviors, and one of its consequences is an increase in weight. We aimed to evaluate the association between remote work and weight gain during the COVID-19 pandemic in two cities in southern Brazil. A population-based cross-sectional study carried out in the southern region of Brazil. Data were collected face-to-face, in households selected by census sampling. The outcome was weight gain, and the exposure was remote working. To verify this association, Poisson Regression was used to calculate the crude and adjusted prevalence ratio and its 95% confidence intervals, using 5% significance level. In total, 2,152 individuals were interviewed. The prevalence of weight gain during the pandemic was 38.4% (95%CI 36.1-40.7), being significantly higher in those who worked remotely (47.0% vs 37.7, p=0.02). Those individuals who worked remotely were 23% more likely to gain weight during the pandemic compared to those who did not work remotely (PR: 1.23; 95%CI 1.02-1.49). Health and education services may be encouraged to implement educational actions at the collective level, aimed at enlightening the population and preventing weight gain in periods of confinement.