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Table 3 Meta-analysis

From: School-related physical activity interventions and mental health among children: a systematic review and meta-analysis

OutcomeNo. studiesLength of INT (Weeks)Sample size (N): INT + CONT at follow-upMean ageaFemaleb (%)Summary effectHeterogeneity
Hedges’ gSE95% CIp valueQDf (Q)p valueI2 (%)
Depressive symptoms69–52170312.0949− 0.0060.101− 0.204; 0.1930.95412.39450.03059
Anxiety66–15106014.79510.3470.1400.072; 0.6230.01313.73950.01764
Emotional problems58–5226549.4360− 0.0380.091− 0.217; 0.1410.67817.46840.00277
Well-being104–52456511.18520.8770.2660.356; 1.3980.001553.3379< 0.00198
Health-related quality of life114–52738710.44660.0850.048− 0.010; 0.1790.07833.98310< 0.00171
Self-esteem, self-worth108–52586912.79670.1070.102− 0.092; 0.3070.29276.4149< 0.00188
Resilience48–1143714.16490.7480.2150.326; 1.1700.00110.47830.01571
Positive effect54–1867611.10500.0550.079− 0.100; 0.2110.4864.08340.3952
Negative effect54–1867611.1050− 0.3180.500− 1.298; 0.6620.52553.243< 0.00194
Internalising problems164–52504510.21550.0150.062− 0.107; 0.1370.81452.28915< 0.00171
Positive mental health264–521256510.77610.4050.1010.208; 0.603< 0.001637.61525< 0.00196
  1. aMean age was calculated based on the baseline age and weighted by total sample size reported by each study.
  2. b% females calculated based on entire sample size