Table 3.
Cox proportional hazard models of the association between stunting overtime and child characteristics (n 1121)
| Model 1* | Model 2† | Model 3‡ | |||||||
|---|---|---|---|---|---|---|---|---|---|
| HR | 95 % CI | P value | HR | 95 % CI | P value | HR | 95 % CI | P value | |
| Study arm | |||||||||
| Intervention | Reference | Reference | Reference | ||||||
| Control arm | 1·7 | 1·5, 2·1 | < 0·001 | 2·6 | 1·8, 3·8 | < 0·001 | 2·7 | 1·9, 3·9 | < 0·001 |
| Age in months | 1·0 | 0·9, 1·1 | 0·08 | 1·0 | 0·9, 1·0 | 0·89 | 1·0 | 1·0–1·1 | 0·02 |
| Gender of the child | |||||||||
| Female | Reference | Reference | Reference | ||||||
| Male children | 1·2 | 0·9, 1·4 | 0·08 | 1·3 | 1·1, 1·6 | 0·003 | 1·1 | 0·9, 1·4 | 0·16 |
| LAZ score at baseline | 0·8 | 0·8, 0·9 | < 0·001 | 0·9 | 0·8–0·9 | < 0·001 | – | – | |
| Immunisation at baseline | |||||||||
| Complete | Reference | Reference | Reference | ||||||
| Incomplete | 1·0 | 0·8, 1·3 | 0·95 | 1·1 | 0·8, 1·4 | 0·66 | 0·9 | 0·7, 1·2 | 0·76 |
| Socio-economic status | |||||||||
| Non-poor | Reference | Reference | Reference | ||||||
| Poor | 1·1 | 0·9, 1·3 | 0·27 | 1·1 | 0·8, 1·3 | 0·79 | 1·1 | 0·9, 1·4 | 0·21 |
| Cluster | 1·0 | 1·00, 1·01 | < 0·001 | 0·9 | 0·8, 0·9 | 0·002 | 1·0 | 0·9, 0·1 | 0·003 |
| Breast-feeding at the time of enrollment | |||||||||
| No | Reference | Reference | Reference | ||||||
| Yes | 1·1 | 0·9, 1·3 | 0·21 | 1·1 | 0·9, 1·4 | 0·28 | 1·3 | 1·0, 1·6 | 0·02 |
| Exclusive breast-feeding done | |||||||||
| No | Reference | Reference | Reference | ||||||
| Yes | 0·9 | 0·8, 1·2 | 0·88 | 0·98 | 0·8, 1·2 | 0·90 | 1·0 | 0·8, 1·2 | 0·93 |
LAZ, length for age z score.
*
Model 1: Unadjusted model.
†
Model 2: This model is adjusted for age of the child, gender, stunting at baseline, immunisation, socio-economic status, cluster ID and study arm.
‡
Model 3: This model is adjusted for age of the child, gender, immunisation, socio-economic status, cluster ID and study arm.