TABLE 1.
Baseline Characteristics of Subjects: Infants Who Received Complementary Foods in Addition to Breast Milk From 4 Months Compared With Infants Who Were Exclusively Breastfed for 6 Months, a Categorized According to Intention to Treat
| CF (n = 61) | EBF (n = 58) | |
|---|---|---|
| Infant characteristics | ||
| Gender: boys | 31 (51%) b | 24 (41%) b |
| Age at randomization (d) | 122.9 (3.3) | 123.1 (3.1) |
| Gestational length (d) | 281.5 (8.4) | 279.6 (9.3) |
| Wt for age at birth c | 0.86 (0.83) | 0.78 (0.96) |
| Birth wt (kg) | 3.72 (0.43) | 3.68 (0.51) |
| Length for age at birth c | 1.07 (0.89) | 1.03 (1.06) |
| Length at birth (cm) | 51.5 (1.7) | 51.4 (2.1) |
| Head circumference for age at birth c | 1.40 (1.01) d | 1.44 (1.08) |
| Head circumference at birth (cm) | 35.9 (1.3) d | 35.9 (1.4) |
| Wt for age at 4 mo c | 0.36 (0.98) | 0.32 (0.80) |
| Wt at 4 mo (kg) | 7.07 (0.92) | 6.97 (0.79) |
| Length for age at 4 mo c | 0.68 (0.88) | 0.75 (0.80) |
| Length at 4 mo (cm) | 64.5 (2.2) | 64.5 (1.9) |
| Head circumference for age at 4 mo c | 0.93 (0.71) | 0.92 (0.88) |
| Head circumference at 4 mo (cm) | 42.3 (1.1) | 42.2 (1.3) |
| Maternal characteristics | ||
| Age at randomization (y) | 29.7 (5.2) | 30.1 (5.2) |
| Parity | 2.0 (2.0) e | 2.0 (2.0) e |
| Maternal education at university level f | 36 (59%) b | 29 (50%) b |
| Vaginal delivery | 54 (89%) b | 45 (78%) b |
Data are mean (SD) unless otherwise indicated.
a
One mother-infant pair was incorrectly instructed to follow directions for the EBF group.
b
Data are presented as n (%).
c
z scores calculated using WHO reference.
d
One missing value, n = 60.
e
Data are presented as median (interquartile range).
f
Finished studies at university level.