Sleep Duration in Adolescence and Its Prenatal, Perinatal, and Health Determinants in a Large Population-based Cohort Followed from Birth

Abstract Objective To investigate sleep duration and its associated factors in adolescents aged 11 years from the 2004 Pelotas (Brazil) Birth Cohort Study. Methods Sleep was assessed using a self-report habits. Independent variables included perinatal, sociodemographic, behavioral, health characteristics. The associations were estimated multiple linear regression. Results mean of 3,179 9.3 hour (SD =1.7 hour). Longer with lower socioeconomic status at birth (β: 0.37, 95% CI: 0.12; 0.61), mother's education level (p < 0.001), being female 0.19, 0.06; 0.33). Shorter cesarean section delivery −0.16, −0.31; -0.02); having classes morning shift −1.38, −1.51; -1.26), terciles physical activity = 0.04). Conclusions observed this study consistent international recommendations for age range. Adolescents income families, who are more active, shifts other than morning, girls, those born through vaginal presented higher their counterparts.