Trends in sociodemographic and lifestyle factors associated with sedentary behavior among Brazilian adults

Abstract

Objective: To analyze sociodemographic and lifestyle factors associated with screen-based sedentary behavior (watching television ≥ 3 hours/day) among adult individuals in Brazil. Methods: Quantitative analysis of ten editions of the cross-sectional health survey VIGITEL, representative at the population level. Individuals from states’ capitals living in households with land-line telephone were randomly selected and interviewed with a structured questionnaire, through the telephone. A multivariate logistic regression model was estimated for identification of factors associated with screen-based sedentary behavior. Results: There was stability in trends referring to prevalence of sedentary behavior from 2008 to 2017. Prevalence of sedentary behavior was higher between individuals with unhealthier lifestyles: consumption of < two in natura food items (vegetables, fruits, and beans) per day (26.73% [95%CI 25.2 – 28.31]) in comparison with ≥ two items per day (23.79% [95%CI 21.92 – 25.77]); consumption of soft drinks ≥ five days per week (31.24% [95%CI 29.58 – 32.95]) than < five days per week (23.82% [95%CI 22.2 – 25.52]); and practice of < 150 minutes of physical activity per week (28.2% [95%CI 26.17 – 30.33]) than ≥ 150 minutes per week (22.54% [95%CI 21.27 – 23.86]). Regular consumption of in natura food items (OR = 0.984), practice of physical activity (OR = 0.798), and living in richer municipality (OR = 0.826) represented protective factors in relation to screen-based sedentary behavior, whilst regular consumption of soft drinks (OR = 1.440), smoking (OR = 1.375) and alcohol abuse (OR = 1.334) represented risk factors. Conclusion: The adoption of screen-based sedentary behavior among adult individuals in Brazil presented significant association with modifiable behavioral factors in the period 2008–2017.

Changes in Screen Time in Brazil: A Time-Series Analysis 2016-2021

“…6 In Brazil, the prevalence prolonged TV watching (≥3 h/ day) was also stable between 2008 and 2017 (25%). 7 However, the time spent on other screens, like cell phone, computer, or tablet (CCT), remains poorly described, 8 preventing an accurate time trend analysis of screen time. Therefore, we aimed to analyze the temporal trend of leisure screen time among adults in Brazil between 2016 and 2021.…”

Estilo de vida, estado nutricional e determinantes sociais da saúde: estudo de base populacional com adolescentes residentes no município de São Paulo de 2003 a 2015

“…Adolescentes autodeclarados brancos com melhores condições socioeconômicas usualmente têm maior tempo de tela em países em desenvolvimento, como Brasil, em contraposição à situação de países desenvolvidos, em que minorias étnicas estão mais expostas ao comportamento sedentário (DUMITH et al, 2010). Entretanto, resultados de estudo com adultos brasileiros demonstrou maior probabilidade de comportamento sedentário entre indivíduos autodeclarados negros, pardos e indígenas residentes em capitais brasileiras ao longo do período de 2008de a 2017SARTI, 2021), contrariamente aos dados apresentados na tese para adolescentes residentes no município de São Paulo.…”