Group | Week of gestation | Number | Maternal age (years)* Mean ± SD | Maternal weight (kg) ** Mean ± SD | Smokers *** N (%) |
---|---|---|---|---|---|
1 | 10 to 10+6/7 | 96 | 31.7 ± 4.5 | 66.9 ± 12.8 | 10 (10.4%) |
2 | 11 to 11+6/7 | 853 | 31.5 ± 4.6 | 66.4 ± 11.2 | 91 (10.7%) |
3 | 12 to 12+6/7 | 1326 | 31.4 ± 4.4 | 65.4 ± 10.6 | 153 (11.5%) |
4 | 13 to 13+6/7 | 608 | 31.4 ± 4.4 | 65.6 ± 10.4 | 61 (10.0%) |
Total | 2883 | 31.5 ± 4.5 | 66.1 ± 11.3 | 315 (10.9%) |