In order to bring you the best possible user experience, this site uses Javascript. If you are seeing this message, it is likely that the Javascript option in your browser is disabled. For optimal viewing of this site, please ensure that Javascript is enabled for your browser.
Did you know that your browser is out of date? To get the best experience using our website we recommend that you upgrade to a newer version. Learn more.

We use cookies to optimise the design of this website and make continuous improvement. By continuing your visit, you consent to the use of cookies. Learn more

Does Television viewing increase the risk of type 2 Diabetes?

Comment by Monique Verschuren, EACPR Prevention, Epidemiology and Population Science Section

Television Viewing and Risk of Type 2 Diabetes, Cardiovascular Disease, and All-Cause Mortality. A Meta-analysis
Anders Grøntved, MPH, MSc; Frank B. Hu, MD, PhD
JAMA. 2011;305(23):2448-2455. doi: 10.1001/jama.2011.812

Physical inactivity is known to be a risk factor for cardiovascular diseases (CVD), type 2 Diabetes (DM2) and all-cause mortality.

Television viewing is the most prevalent sedentary behaviour, and in a recent issue of the Journal of the American Medical Association (JAMA), Grontved and Hu report a meta-analysis on the relation between television viewing and the risk of CVD, DM2 and all-cause mortality.
The pooled relative risks per 2 hours of television viewing per day were 1.20 (95% CI 1.14-1.27) for DM2, 1.15 (95% CI 1.06-1.23) for CVD and 1.13 (95% CI 1.07-1.18) for all-cause mortality. The estimates were adjusted for a number of confounders, amongst which specific dietary habits. However, some residual confounding cannot be ruled out.

It remains to be shown whether decreasing the amount of time spent watching television will reduce the risks.