Study population demographics for cohort 3—three-month- to 5-year-olds (n = 203)
| Vaginal Delivery (Mean ± SD) | Cesarean Delivery (Mean ± SD) | P Value | |
|---|---|---|---|
| MWF study (n = 203) | 164 | 39 | |
| Mother's post-secondary education (yr) | 5.8 ± 1.0 | 6.0 ± 0.9 | .22 |
| Mother's age at pregnancy (yr) | 29.0 ± 5.6 | 33.8 ± 5.1 | <.001 |
| Sex (M/F) | 93/71 | 23/16 | .86 |
| Gestational age at birth (days) | 277 ± 8 | 273 ± 4 | .001 |
| Birth weight (kg) | 3.54 ± 0.45 | 3.37 ± 0.48 | .06 |
| Birth length (cm) | 50.8 ± 4.1 | 50.8 ± 4.1 | .63 |
| No. of scans | 2.2 ± 1.2 | 2.4 ± 1.3 | .32 |
| Mean interscan period (days) | 296 ± 144 | 333 ± 147 | .12 |