Comparison 7. High‐income countries. CBA.

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Weight	1	116	Mean Difference (IV, Random, 95% CI)	0.95 [0.58, 1.33]
1.1 Boys	1	55	Mean Difference (IV, Random, 95% CI)	0.90 [0.36, 1.44]
1.2 Girls	1	61	Mean Difference (IV, Random, 95% CI)	1.0 [0.48, 1.52]
2 Height	1	116	Mean Difference (IV, Random, 95% CI)	0.61 [‐0.31, 1.54]
2.1 Boys	1	55	Mean Difference (IV, Random, 95% CI)	0.40 [‐0.96, 1.76]
2.2 Girls	1	61	Mean Difference (IV, Random, 95% CI)	0.80 [‐0.47, 2.07]