Sedentary behavior and associated factors in adolescent students in the municipality of Sombrio – SC

Abstract

OBJECTIVE: To characterize indicators of sedentary behavior (SB) in adolescent students and verify their associations with sociodemographic and anthropometric factors and level of physical activity (PA). METHODS: A total of 104 adolescents (63.3% female, 16.43 ± 0.98 years) from the city of Sombrio – SC participated in the study. The SB indicators (TV use, games, computer and cell phone use on weekdays and weekends) were categorized as ≤ 2 and > 2 hours/day. The following were considered as independent variables: sex, parental education, type of school, socioeconomic index, body mass index and level of PA. A multivariate logistic regression was used to determine the associations (p < 0.05). RESULTS: Cell phone-related SB was the most prevalent, and having an insufficient level of PA increased the chances of this behavior (OR: 3.42; 95%CI: 1.15 – 10.16). Being female increased the chance of TV use (OR: 4.54; 95%CI: 1.12 – 18.24). Not being overweight reduced the chance of SB related to cell phone use (OR: 0.19; 95%CI: 0.03 – 0.95) and TV time (OR: 0.08; 95%CI: 0.01 – 0.45). CONCLUSION: Cell phone-related SB was high among adolescents, and associations with BMI and PA level need to be considered for the development of interventions to prevent SB in adolescence.