Table 3.
Results of meta-regression analyses of mean difference in child growth on quality scores items of the included studies
| Categories | Items in quality score (moderators) | Regression coefficient (95% CI) | SE | P value |
| Overall quality | Intercept | 0.01 (−0.88 to 0.91) | 0.466 | 0.975 |
| General domain vs total score | 0.01 (−0.02 to 0.04) | 0.017 | 0.571 | |
| Risk of bias vs total score | −0.01 (−0.02 to 0.00) | 0.006 | 0.154 | |
| Total score | Reference | – | – | |
| Risk of bias | Intercept | 0.68 (−0.08 to 1.43) | 0.384 | 0.078 |
| Sequence generation | −0.01 (−0.05 to 0.03) | 0.020 | 0.502 | |
| Allocation concealment | 0.03 (−0.02 to 0.08) | 0.024 | 0.229 | |
| Was baseline outcome similar? | 0.06 (0.02 to 0.10) | 0.021 | 0.007 | |
| Were baseline characteristics similar? | −0.13 (−0.23 to −0.03) | 0.051 | 0.009 | |
| Incomplete outcome data addressed | 0.03 (−0.04 to 0.09) | 0.033 | 0.412 | |
| Blinding of participants | 0.03 (−0.03 to 0.08) | 0.029 | 0.350 | |
| Blinding of outcome assessment | 0.01 (−0.04 to 0.06) | 0.024 | 0.756 | |
| Was there selective reporting bias? | −0.02 (−0.06 to 0.03) | 0.024 | 0.494 | |
| Protection against contamination | 0.02 (−0.03 to 0.06) | 0.023 | 0.474 | |
| Adequately adjusted for confounders? | −0.03 (−0.10 to 0.04) | 0.0345 | 0.345 | |
| Total score of risk of bias | Reference | – | – |