Television Viewing Time and All-Cause Mortality in Patients With Cardiovascular Disease

Abstract

Rogerson et al. [ [1] Rogerson M.C. Le Grande M.R. Dunstan D.W. Magliano D.J. Murphy B.M. Salmon J. et al. Television Viewing Time and 13-year Mortality in Adults with Cardiovascular Disease: Data from the Australian Diabetes, Obesity and Lifestyle Study (AusDiab). Heart Lung Circ. 2016; 25: 829-836 Abstract Full Text Full Text PDF PubMed Scopus (17) Google Scholar ] examined the relationship between sedentary behaviour and the 13-year all-cause mortality in patients with cardiovascular disease (CVD). A major finding of this study was the increased risk of all-cause mortality in those with a TV viewing time of over 4 hours per day as compared that in those with a TV viewing time of less than 2 hours per day (hazard ratio (HR) 1.52, 95% confidence interval (CI) 1.09–2.13). This is primarily interpreted by the authors as being related to sedentary behaviour. However, I have some concerns about this conclusion, and suggest the possibility of other causes for this relationship. Television Viewing Time and 13-year Mortality in Adults with Cardiovascular Disease: Data from the Australian Diabetes, Obesity and Lifestyle Study (AusDiab)Heart, Lung and CirculationVol. 25Issue 8PreviewIn the general population, excessive sedentary behaviour is associated with increased all-cause mortality. Few studies have examined this relationship in people with cardiovascular disease (CVD). Using a sample of people with CVD who were excluded from an analysis of the Australian Diabetes, Obesity and Lifestyle (AusDiab) study, we examined the relationship between sedentary behaviour and 13-year all-cause mortality. Full-Text PDF