Table 1. Selected characteristics of women and children by the three intervention groups at baseline and follow-up* (Mean values and standard deviations; percentages and numbers of participants).
| Fe and folic acid (n 104) | Multiple micronutrient (n 120) | Lipid-based nutrient supplement (n 129) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Variable | Mean | SD | n/total n | Mean | SD | n/total n | Mean | SD | n/total n |
| Collected at baseline | |||||||||
| Maternal age (years) | 27·1 | 0·5 | 104 | 27·3 | 0·5 | 120 | 27·8 | 0·5 | 129 |
| Maternal education (years) | 7·4 | 0·4 | 104 | 7·4 | 0·3 | 120 | 7·9 | 0·3 | 129 |
| Household asset score† | 0·07 | 0·10 | 104 | 0·18 | 0·09 | 119 | −0·02 | 0·09 | 125 |
| Nulliparous (%) | 27·9 | 29/104 | 29·2 | 35/120 | 29·5 | 38/129 | |||
| Collected at follow-up | |||||||||
| Child male (%) | 46·2 | 48/104 | 45·0 | 54/120 | 43·4 | 56/129 | |||
| Age at follow-up (years) | 5·2 | 0·1 | 104 | 5·1 | 0·1 | 120 | 5·2 | 0·1 | 129 |
| Valid days of accelerometer wear (no.) | 6·7 | 0·1 | 104 | 6·8 | 0·1 | 120 | 6·8 | 0·1 | 129 |
| Accelerometer wake wear time (h) | 14·7 | 0·1 | 104 | 14·6 | 0·1 | 120 | 14·8 | 0·1 | 129 |
| Time spent in preschool instruction (h) | 5·2 | 0·1 | 104 | 5·3 | 0·1 | 120 | 5·2 | 0·1 | 129 |
| Preschool attendance (%) | 84·6 | 88/104 | 85·8 | 103/120 | 86·8 | 112/129 | |||
| Season measurement: Wet (%) | 73·1 | 76/104 | 70·0 | 84/120 | 75·2 | 97/129 | |||
| Home stimulation score at 4–6 years | 27·4 | 0·5 | 104 | 28·1 | 0·4 | 119 | 28·3 | 0·4 | 129 |
*
Non-lipid-based nutrient supplement group (control group) was the Fe and folic acid + multiple micronutrient capsule groups.
†
Proxy indicator for household socio-economic status constructed for each household based on ownership of a set of assets (radio, television, etc.), lighting source, drinking water supply, sanitation facilities and flooring materials. Household ownership of this set of assets is combined into an index (with a mean of 0 and an SD of 1) using principal components analysis. Higher value represents higher socio-economic status(31).