Comparison of depressed and non-depressed groups on Bayley's Scales of Infant Development scores
| Birth measurements and scores of baby | Depressed (n=51), mean (SD) | Non-depressed (n=146), mean (SD) | t | df | p Value (t test) |
| Cognitive composite score | 93.8 (10.4) | 96.2 (9.6) | 1.51 | 195 | 0.13 |
| Language composite score | 89.7 (8.7) | 90.0 (8.7) | 0.16 | 195 | 0.88 |
| Motor composite score | 91.1 (14.2) | 93.1 (13.5) | 0.88 | 195 | 0.38 |
| Social emotional composite score | 107 3 (17.9) | 108.4 (16.7) | 0.42 | 195 | 0.67 |
| Adaptive behaviour composite score | 95.2 (9.2) | 99.8 (10.5) | 2.81 | 195 | 0.006 |