Characteristics of subjects’ mothers at time of birth (n = 323)
| *Values shown as mean (SD). | |
| Age (years)* | 27.2 (5.5) |
| Height (cm)* | 158.2 (5.5) |
| Gestation (weeks)* | 40.3 (1.7) |
| Place of subjects’ birth | |
| Aberdeen Maternity Hospital | 286 (89%) |
| Home birth | 37 (11%) |
| Parity | |
| 0 | 124 (38%) |
| 1 | 99 (31%) |
| 2 | 65 (20%) |
| 3 | 21 (7%) |
| 4 | 10 (3%) |
| 5 or more | 4 (1%) |
| Smoked during subjects’ childhood | 200 (62%) |