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Table 6 Meta regression analysis for in obesity prevention policies on BMI and BMI-Zscore

From: The effectiveness of pediatric obesity prevention policies: a comprehensive systematic review and dose–response meta-analysis of controlled clinical trials

Body mass index (BMI) Tau2 P 95% CI
Estimate of between-study variance 0.020   
By setting/community versus others 0.1461 0.186 − 0.0929, 0.4653
By target group/children versus others 0.1594 0.528 − 0.3282, 0.6312
By country/USA versus others 0.1604 0.728 − 0.3080, 0.4377
By intervention content/education versus others 0.1614 0.923 − 0.4419, 0.4867
By study focus/Diet + PAa versus PA only 0.1402 0.524 − 0.4518, 0.2333
By age/≤ 5 years versus others 0.1586 0.476 − 0.2434, 0.5130
By sample size/≤ 1000 versus others 0.1191 0.005 0.0703, 0.3816
By frequency of intervention/ daily versus others 0.16 0.752 − 0.2873, 0.3951
By duration of intervention/≤ 1 year versus others 0.1595 0.322 − 0.1622, 0.4836
By follow-up/≤ 1 year versus others 0.1574 0.285 − 0.1661, 0.5518
By sex/combination of both genders versus others 0.1619 0.589 − 0.4114, 0.2364
By baseline BMI/≤ 18 versus others 0.1604 0.199 − 0.4802, 0.1027
By study quality/strong versus others 0.1572 0.384 − 0.4514, 0.1769
BMI-Zscore
 Estimate of between-study variance 0.0129   
 By setting/community versus others 0.0158 0.173 − 0.0309, 0.1667
 By target group/children versus others 0.0168 0.301 − 0.1515, 0.4787
 By country/USA versus others 0.0173 0.797 − 0.0854, 0.1106
 By intervention content/education versus others 0.0169 0.367 − 0.0951, 0.2525
 By study focus/diet + PA versus PA only 0.0173 0.550 − 0.1931, 0.3578
 By age/≤ 5 years versus others 0.0164 0.222 − 0.0629, 0.2642
 By sample size/≤ 1000 versus others 0.0148 0.045 0.0013, 0.1075
 By frequency of intervention/daily versus others 0.0174 0.771 − 0.1191, 0.0889
 By duration of intervention/≤ 1 year versus others 0.0163 0.253 − 0.1441, 0.0390
 By follow-up/≤ 1 year versus others 0.0173 0.906 − 0.1078, 0.0958
 By sex/combination of both genders versus others 0.0167 0.210 − 0.1867, 0.0422
 By study quality/strong versus others 0.0167 0.268 − 0.1490, 0.0423
  1. The significant P-values are presented as italic numbers
  2. a Physical activity