From: Epidemiology of congenital polydactyly and syndactyly in Hunan Province, China
Types | n | Prenatal diagnosis (n) | Proportion (%) | Postnatal diagnosis (within 7 days) | Proportion (%) |
---|---|---|---|---|---|
Polydactyly | 1888 | 61 | 3.23 | 1827 | 96.77 |
 Hand polydactyly | 1597 | 48 | 3.01 | 1549 | 96.99 |
 Foot polydactyly | 343 | 21 | 6.12 | 322 | 93.88 |
Syndactyly | 626 | 27 | 4.31 | 599 | 95.69 |
 Hand syndactyly | 342 | 20 | 5.85 | 322 | 94.15 |
 Foot syndactyly | 320 | 12 | 3.75 | 308 | 96.25 |