Table 3:
Estimated effects of intervention on child development, health, nutrition, and growth
Outcomes | Intervention |
|||
---|---|---|---|---|
No. | β (95% CI) | P-value | Mean of control group at follow-up | |
Panel A: Skill development | ||||
Summary index§ | 385 | 0·17 (0·02–0·33) | 0·04 | −0·08 |
Cognition score | 386 | 0·24 (0·04–0·44) | 0·01 | −0·11 |
Receptive language score | 386 | −0·01 (−0·17–0·15) | 0·89 | −0·02 |
Expressive language score | 386 | 0·14 (−0·03–0·32) | 0·09 | −0·04 |
Gross motor score | 385 | 0·14 (−0·04–0·32) | 0·12 | −0·09 |
Fine motor score | 386 | 0·13 (−0·03–0·29) | 0·09 | −0·06 |
Social-emotional score | 386 | 0·10 (−0·07–0·27) | 0·24 | −0·01 |
Panel B: Health | ||||
Summary index§ | 390 | 0·29 (0·13–0·46) | 0·001 | −0·15 |
Diarrhea in past 2 weeks | 390 | −0·08 (−0·12– −0·04) | <0·001 | 0·12 |
Symptoms of respiratory tract infection in past 2 weeks | 390 | −0·08 (−0·18–0·02) | 0·10 | 0·49 |
Number of times ill in past 2 weeks | 390 | −0·08 (−0·23–0·07) | 0·27 | 0·72 |
Panel C: Nutrition and growth | ||||
Hemoglobin (g/L) | 367 | −0·22 (−3·96–3·52) | 0·91 | 116·5 |
Anemic | 367 | 0·01 (−0·11–0·12) | 0·92 | 0·27 |
Summary index of physical growth§ | 380 | 0·07 (−0·08–0·22) | 0·33 | −0·03 |
Length/height for age | 380 | 0·01 (−0·16–0·19) | 0·87 | −0·07 |
Healthy length/height for age | 380 | 0·02 (−0·02–0·05) | 0·36 | 0·94 |
Healthy weight for height | 380 | 0·02 (−0·03–0·07) | 0·38 | 0·92 |
Healthy weight for age | 380 | −0·004 (−0·04–0·03) | 0·80 | 0·93 |
Diarrhea in past 2 weeks’ and ‘symptoms of respiratory tract infection in past 2 weeks’ are dummies = 1 if the child had diarrhea and coughed or had a cold over the past 2 weeks, respectively; 0 otherwise. ‘Length/height for age’ is a standardized z-score relative to the WHO reference population. ‘Healthy height for age’ is a dummy indicating that the child’s height for age is not more than two standard deviations below the mean of the WHO reference population. ‘Healthy weight for height’ and ‘healthy weight for age’ are dummies indicating that the scores are no more than two standard deviations above or below the respective means of the WHO reference populations.
The ‘summary index’ in panel A is the weighted average of the measures in rows 2–7. The ‘summary index’ in panel B is the weighted average of the absolute value of the measures in rows 2–4 of panel B. The ‘summary index’ in panel C is the weighted average of the measures in rows 5–7.
When we use the Romano-Wolf stepdown procedure to adjust the p-values of all variables (except for the summary indices) for the family-wise error rate, the ITT effects on cognition scores and the risk of diarrheal illness remain significant at the 5% level.