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Table 5 Summary table of results showing relation between sedentary behaviour and markers for metabolic syndrome and cardiovascular disease

From: Systematic review of sedentary behaviour and health indicators in school-aged children and youth

Type of Study Number of Studies Number of participants Narrative recommendation and main findings
RCT 0   
Longitudinal 2 1675 > 2 hr of TV per day is associated with higher serum cholesterol levels. > 1.2 hrs of TV per day is associated with increased systolic blood pressure.
Cross sectional 9 17339 > 2 of screen time per day is associated with higher blood pressure and increased risk for metabolic syndrome.
Intervention 0   
Total of all studies 11 19014 Increased screen time is associated with increased risk for markers of metabolic syndrome and cardiovascular disease. Risk increases in a dose-response manner.
Mean Downs and Black score = 21.7 (± 2.0), Level 3 evidence.