Demographic | Incidence |
---|---|
   Overall | 1:1681 |
   Gender |  |
Male | 1:1763 |
Female | 1:1601 |
   Ethnicity |  |
White | 1:1815 |
Black | 1:1902 |
Asian | 1:1016 |
Hispanic | 1:1559 |
   Birth weight |  |
< 1500 g | 1:1396 |
1500 - 2500 g | 1:851 |
> 2500 g | 1:1843 |
   Single vs. multiple births |  |
Single | 1:1765 |
Twin | 1:876 |
Multiple | 1:575 |
   Mother's age |  |
< 20 years | 1:1703 |
20-29 years | 1:1608 |
30-39 years | 1:1677 |
> 39 years | 1:1328 |