Review Article
Multicomponent Lifestyle Interventions for Treating Overweight and Obesity in Children and Adolescents: A Systematic Review and Meta-Analyses
Table 1
Overall and subgroup (<12 and ≥12 years) analyses of BMI and BMI Z score differences.
| Outcome, follow-up | Number of studies | Number of participants | Meta-analyses, mean difference (95% CI) | Statistical heterogeneity | Test for differences between subgroups | GRADE quality of overall documentation | Overall Subgroups | value | I2 value | value | I2 value |
| BMI 6 months | 14 | 1591 | −0.99 (−1.36 to −0.61) | 0.00001 | 72% | — | — | Moderate1 | Age < 12 years | 6 | 896 | −0.74 (−0.26 to −0.22) | 0.0006 | 77% | 0.19 | 40.8% | Age ≥ 12 years | 8 | 695 | −1.26 (−1.85 to −0.68) | 0.001 | 70% | BMI 12 months | 19 | 3238 | −0.67 (−1.01 to −0.32) | <0.00001 | 80% | — | — | Moderate1 | Age < 12 years | 10 | 2135 | −0.31 (−0.45 to −0.17) | 0.47 | 0% | 0.13 | 55.7% | Age ≥ 12 years | 9 | 1103 | −1.02 (−1.95 to −0.10) | <0.00001 | 87% | BMI 24 months | 8 | 828 | −0.96 (−1.63 to −0.29) | 0.005 | 65% | — | — | Low1,2 | Age < 12 years | 3 | 254 | −0.28 (−0.85 to 0.30) | 0.26 | 25% | 0.007 | 86.3% | Age ≥ 12 years | 5 | 574 | −1.58 (−2.33 to −0.83) | 0.18 | 36% | BMI Z score 6 months | 18 | 1607 | −0.12 (−0.17 to −0.06) | <0.00001 | 77% | — | — | Moderate1 | Age < 12 years | 9 | 696 | −0.16 (−0.27 to −0.05) | <0.00001 | 79% | 0.35 | 0% | Age ≥ 12 years | 9 | 911 | −0.10 (−0.16 to −0.03) | <0.0001 | 77% | BMI Z score 12 months | 22 | 2804 | −0.16 (−0.21 to −0.10) | <0.00001 | 69% | — | — | Moderate1 | Age < 12 years | 11 | 1504 | −0.17 (−0.26 to −0.07) | 0.0006 | 68% | 0.91 | 0% | Age ≥ 12 years | 11 | 1300 | −0.16 (−0.23 to −0.09) | 0.0002 | 71% | BMI Z score 24 months | 8 | 831 | −0.16 (−0.21 to −0.10) | 0.17 | 33% | — | — | High | Age < 12 years | 3 | 257 | −0.13 (−0.26 to 0.00) | 0.09 | 58% | 0.56 | 0% | Age ≥ 12 years | 5 | 574 | −0.17 (−0.23 to −0.11) | 0.28 | 21% |
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1High statistical heterogeneity, 2wide confidence interval.
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