Table 4 Association between major birth defects and maternal age
| Â | Maternal agea | p valueb |
|---|---|---|
Born without birth defect | 26.6 (6.5) | Â |
Anencephalus | 25.6 (9.2) | > 0.9999 |
Spina bifida | 25.2 (6.5) | > 0.9999 |
Hydrocephalus | 24.5 (5.1) | > 0.9999 |
Cleft lip and/or palate | 26.4 (6.8) | > 0.9999 |
Esophageal atresia/stenosis with or without fistula | 20.4 (5.5) | 0.2730 |
Anorectal atresia/stenosis | 27 (5.1) | > 0.9999 |
Hypospadias | 26.7 (5.4) | > 0.9999 |
Undetermined sex | 25.7 (5.1) | > 0.9999 |
Limb reduction defects | 30.3 (7.9) | > 0.9999 |
Gastroschisis | 21.5 (4.4) | 0.0022c |
Down syndrome | 33.5 (7.3) | 0.0073c |