Estudo da associação entre asma e horas de sono em adolescentes brasileiros

Abstract

The aim was to investigate the association between asthma and sleep duration in participants of Study of Cardiovascular Risks in Adolescents (ERICA). It is a cross-sectional, national school-based study, involving adolescents aged 12- 17 years. In the period between 2013-14, data from 59,442 participants were analyzed. Bivariate analysis between current asthma and short sleep duration, defined as <7 hours / night, was performed separately with the others variables of study: sex, age group, type of school, weight categories and common mental disorders. Then, different generalized linear models with Poisson family and logarithmic link function was used to assess the independence of potential confounding covariates associated with both, asthma and short sleep duration in the previous analysis. Crude and adjusted prevalence ratios (PR) and respective 95% confidence intervals (95%CI) were calculated, and a value of p<0.05 was considered significant for all analyzes performed. The prevalence of “current asthma” was 13.4%, being significantly higher among students with short sleep duration (PR: 1.17; 95% CI 1.01–1.35; p = 0.034). This remained significant even after adjusting for the other study covariates. There was a positive association between the prevalence of current asthma and short sleep duration among Brazilian adolescents. Considering the high prevalence and morbidity of the disease in this age group, the promotion of sleep hygiene should be considered as a possible health strategy aimed at contributing to better control of asthma in this population.