Associação entre comportamento sedentário e doenças crônicas não transmissíveis na população brasileira

Abstract

Estimate the prevalence of sedentary lifestyle and analyze it’s association with chronic non-communicable diseases in Brazilian population. Methods: Cross-sectional study, using data obtained in the National Health Survey, a population-based household survey conducted in Brazil, in 2013. The sedentary behavior was evaluated considering the time spent watching television, obtained with the question "On average, how many hours a day do you usually watch television?". The chronic diseases considered were arterial hypertension and excess body weight, estimated by means of body mass index. Sociodemographic variables such as gender, age group and schooling level were also considered. The chi-square test and adjusted logistic regression models were used in the statistical analysis, estimating the Odds Ratio (ORaj). Results: A total of 60,202 individuals were evaluated, 52.9% female, 34.2% between 25 and 39 years of age, 38.9% of the people were not educated or had incomplete elementary education, 32.3% had arterial hypertension and 53.8% were overweight. For sedentary behavior, it was observed that 25.8% watched television between 1 hour and <2 hours daily and the lowest frequency of this behavior (15.2%) occurred among subjects who watched television for 5 hours or more daily. There was a significant association between screen time and the prevalence of hypertension and excess body weight. Conclusion: The prevalence of sedentary lifestyle in the Brazilian population was high and the greater the time spent watching television daily, the greater are the chances of showing arterial hypertension and excess body weight in the Brazilian population.