Effect of the intervention (vitamin A) on diarrhoea in the 14 days before measurement of weight, and WAZ adjusted for baseline WAZ
| Study | Diarrhoea LP | Diarrhoea PR (95% CI) | WAZ | WAZ difference (95% CI) |
| Ghana | ||||
| Control | 17.7% | −1.71 | ||
| Vitamin A | 17.3% | 0.97 (0.86 to 1.10) | −1.67 | +0.04 (−0.01 to 0.09) |
| Brazil | ||||
| Control | 4.9% | −0.82 | ||
| Vitamin A | 5.1% | 1.03 (0.82 to 1.29) | −0.86 | −0.03 (−0.06 to 0.00) |
LP, longitudinal prevalence (=proportion of time ill); PR, (longitudinal) prevalence ratio.