Prolonged TV Viewing Tied to CVD Events, Mortality in Blacks
FRIDAY, July 12, 2019 -- Prolonged television viewing, but not occupational sitting, is associated with an increased risk for cardiovascular disease (CVD) events and all-cause mortality in blacks, according to a study published in the July 2 issue of the Journal of the American Heart Association.
Jeanette Garcia, Ph.D., from the University of Central Florida in Orlando, and colleagues examined the correlation of both television viewing and occupational sitting with CVD events and all-cause mortality in a cohort of 3,592 African-Americans. Participants self-reported television viewing (more than two hours, two to four hours, more than four hours/day) and occupational sitting (never/seldom, sometimes, often/always).
The researchers identified 129 CVD events and 205 deaths during a median follow-up of 8.4 years. Compared with the lowest category of television viewing, the highest category correlated with an increased risk for a composite CVD events/all-cause mortality end point (hazard ratio, 1.49; 95 percent confidence interval, 1.13 to 1.97). In contrast, there was no correlation for the highest versus the lowest category of occupational sitting with the risk for composite CVD events/all-cause mortality (hazard ratio, 0.90; 95 percent confidence interval, 0.69 to 1.18). Moderate-to-vigorous physical activity (MVPA) moderated the association; among individuals with high MVPA levels, television viewing was not associated with a greater risk for CVD events and all-cause mortality.
"Eating a large meal and then sitting hours at a time could be a very harmful combination," Garcia said in a statement.
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Posted: July 2019
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