|No. of participants (No. of studies)||Design||Quality assessment||Absolute effect||Quality|
|Risk of bias||Inconsistency||Indirectness||Imprecision|
|The mean age was 3.1 years. Data were collected cross-sectionally. Cardiometabolic health was assessed using an objective measure of blood pressure.|
|276 (1)||Cross-sectionala||Serious risk of biasb||No serious inconsistency||No serious indirectness||No serious imprecision||
Screen-based sedentary behaviours:
Watching TV for ≥ 2 h/day was not associated with high blood pressure (compared to <2 h/day, Prevalence Ratio = 0.9, 95% CI: 0.5, 1.4, p = 0.568) .