Table 2 Summary information, available prior to the IPD meta-analysis, about 14 trials that were included in the aggregate data meta-analysis of Thangaratinam et al. [31] and had promised their IPD at the time of the IPD meta-analysis grant application
| Â | Â | Intervention group | Control group | Â | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Author | Year | n | Mean weight gain (kg) | SD of weight gain | Mean BMI at baseline | SD of BMI | n | Mean weight gain (kg) | SD of weight gain | Mean BMI at baseline | SD of BMI | Intervention effect (difference in weight gain) | 95% CI |
Wolff | 2008 | 23 | 6.60 | 5.50 | 34.90 | 4.00 | 27 | 13.30 | 7.50 | 34.60 | 3.00 | −6.70 | (− 10.31, −3.09) |
Landon | 2009 | 476 | 2.80 | 4.50 | 30.10 | 5.00 | 455 | 5.00 | 3.30 | 30.20 | 5.10 | −2.20 | (−2.71, −1.69) |
Rae | 2000 | 67 | 11.56 | 10.80 | 37.90 | 0.70 | 58 | 9.68 | 11.04 | 38.00 | 0.70 | 1.88 | (−1.96, 5.72) |
Guelinck | 2010 | 42 | 9.80 | 7.60 | 33.75 | 3.79 | 43 | 10.60 | 6.90 | 33.50 | 3.90 | −0.80 | (−3.89, 2.29) |
Jeffries | 2009 | 124 | 10.70 | 4.21 | NA | NA | 111 | 11.50 | 4.03 | NA | NA | −0.80 | (−1.85, 0.25) |
Jackson | 2010 | 163 | 15.15 | 5.50 | NA | NA | 164 | 15.24 | 6.67 | NA | NA | −0.09 | (−1.41, 1.23) |
Hui | 2006 | 24 | 14.20 | 5.30 | 23.40 | 3.90 | 21 | 14.20 | 6.30 | 25.70 | 6.30 | 0.00 | (−3.43, 3.43) |
Ong | 2009 | 6 | 3.70 | 3.40 | 35.10 | 3.50 | 6 | 5.20 | 1.30 | 35.10 | 3.50 | −1.50 | (−4.41, 1.41) |
Khaledan | 2010 | 18 | 4.04 | 3.49 | NA | NA | 21 | 5.00 | 3.70 | NA | NA | −0.96 | (−3.22, 1.30) |
Barakat | 2009 | 72 | 11.50 | 3.70 | 24.30 | 0.50 | 70 | 12.40 | 3.40 | 23.40 | 0.50 | −0.90 | (−2.07, 0.27) |
Haakstad | 2009 | 52 | 13.00 | 4.00 | NA | NA | 53 | 13.80 | 3.80 | NA | NA | −0.80 | (−2.29, 0.69) |
Hopkins | 2010 | 47 | 8.20 | 3.49 | 25.50 | 4.30 | 37 | 8.00 | 3.70 | 25.40 | 2.90 | 0.20 | (−1.35, 1.75) |
Marquez-Sterling | 2000 | 9 | 16.20 | 3.40 | 22.80 | 4.00 | 6 | 15.70 | 4.00 | 24.50 | 4.50 | 0.50 | (−3.40, 4.40) |
Yeo | 2009 | 60 | 15.90 | 6.80 | NA | NA | 64 | 15.40 | 5.90 | NA | NA | 0.50 | (−1.75, 2.75) |