Public in Journal of Physical Activity and Health, 2015, 12, 299 -306. Written by Leandro Fornias Machado de Rezende, Fabiana Maluf Rabacow, Juliana Yukari Kodaira Viscondi, Olinda do Carmo Luiz, Victor Keihan Rodrigues Matsudo and I-Min Lee
Background: In Brazil, one-fifth of the population reports not doing any physical activity. This study aimed to assess the impact of physical inactivity on major noncommunicable diseases (NCDs), all-cause mortality and life expectancy in Brazil, by region and sociodemographic profile. Methods: We estimated the population attributable fraction (PAF) for physical inactivity associated with coronary heart disease, type 2 diabetes, breast cancer, colon cancer, and all-cause mortality. To calculate the PAF, we used the physical inactivity prevalence from the 2008 Brazilian Household Survey and relative risk data in the literature. Results: In Brazil, physical inactivity is attributable to 3% to 5% of all major NCDs and 5.31% of all-cause mortality, ranging from 5.82% in the southeastern region to 2.83% in the southern region. Eliminating physical inactivity would increase the life expectancy by an average of 0.31 years. This reduction would affect mainly individuals with ≥ 15 years of schooling, male, Asian, elderly, residing in an urban area and earning ≥ 2 times the national minimum wage. Conclusions: In Brazil, physical inactivity has a major impact on NCDs and mortality, principally in the southeastern and central-west regions. Public policies and interventions
promoting physical activity will significantly improve the health of the population.
Keywords: motor activity, non-communicable disease, life expectancydownload