Characteristics of study participants
| Variable | Value |
|---|---|
| n = 767, except for birth weight (n = 197). | |
| Proportion of primiparas | 24% |
| Mean (SD) maternal height | 155 (6) cm |
| Proportion of mothers with HIV infection | 18% |
| Sex ratio of the newborns (males:females) | 1.05:1.00 |
| Mean (SD) term singleton birth weight | 3100 (500) g |
| Proportion of preterm births (<37 completed gestation weeks) | 22% |
| Proportion low birth weight (<2500 g) | 15% |
| Proportion of twin births | 2% |
| Median (25th, 75th centile) duration of exclusive breast feeding | 0.5 (0.5, 1.0) months |
| Median (25th, 75th centile) age at onset of complementary porridge | 1.5 (1.0, 2.5) months |
| Median (25th, 75th centile) age at onset of family foods (Nsima) | 6.2 (5.5, 6.8) months |
| Median (25th, 75th centile) of annual diarrhoea episodes (infancy) | 1.1 (0.0, 2.2) |
| Median (25th, 75th centile) size of cultivated farm land (hectares) | 0.4 (0.3, 0.8) |
| Proportion of families without safe water | 37% |
| Proportion of families with radio, mattress, or bicycle | 46% |