Table 3.
Dose response effect
| n | Mean (SD) | 95% Confidence interval for mean | (P‐value) | |||
|---|---|---|---|---|---|---|
| Lower bound | Upper bound | |||||
| Baby's current weight | Non‐depressed | 121 | 7.1 (0.88) | 6.9 | 7.3 | 0.011* |
| Antenatal depression only | 69 | 6.8 (1.02) | 6.6 | 7.1 | ||
| Depressed both points | 53 | 6.7 (0.80) | 6.4 | 6.9 | ||
| Baby's current length in cm | Non‐depressed | 121 | 66.1 (2.88) | 65.6 | 66.6 | 0.001* |
| Antenatal depression only | 69 | 65.4 (3.02) | 64.7 | 66.1 | ||
| Depressed both points | 53 | 64.3 (2.75) | 63.6 | 65.1 | ||
| PIM score | Non‐depressed | 114 | 39.7 (10.41) | 37.8 | 41.7 | <0.001*, † |
| Antenatal depression only | 65 | 37.1 (14.11) | 33.6 | 40.6 | ||
| Depressed both points | 49 | 30.8 (13.80) | 26.8 | 34.8 | ||
| Exclusive breastfeeding days | Non‐depressed | 113 | 108.7 (54.33) | 98.6 | 118.8 | 0.011* |
| Antenatal depression only | 61 | 95.5 (48.75) | 83.0 | 108.0 | ||
| Depressed both points | 49 | 87.3 (44.96) | 74.4 | 100.2 | ||
| Milk in mL kg−1 ‡ | Non‐depressed | 31 | 83.9 (28.96) | 71.7 | 96.1 | 0.13 |
| Antenatal depression only | 6 | 65.3 (47.59) | 15.3 | 115.2 | ||
| Depressed both points | 18 | 95.1 (34.17) | 81.0 | 109.2 | ||
PIM, Perception of Insufficient Milk; SD, standard deviation. *The mean is significantly greater in the non‐depressed group than in the group who were depressed at both time points (using Bonferroni adjusted pairwise comparisons). †The mean is significantly greater in the antenatal depressed only group than in the group who were depressed at both time points (using Bonferroni‐adjusted pairwise comparisons). ‡Measured in 45 women who were exclusively breastfeeding at 4 months.