Table 2.
Incidence of Intestinal atresia versus allelic incidence of R353R mutation for factor VII
| Region/country | Incidence of small intestine atresia | Allele frequency (%) of factor V Leiden | |
|---|---|---|---|
| 1 | Spain (2001–2005) | 0.57 | 3.33 |
| 2 | Norway (1974–2005) | 0.9 | 3.7 |
| 3 | Chile (2002–2005) | 0.95 | 2.5 |
| 4 | UK | 1.04 | 4.4 |
| 5 | USA–Utah (2001–2005) | 1.32 | 4.2 |
| 6 | Italy (ISMAC) (2001–2005) | 1.5 | 2 |
| 7 | N. Netherlands (1985–2005) | 1.62 | 2.9 |
| 8 | Wales | 1.84 | 4 |
| 9 | Slovak (1995–2005) | 2.02 | 4 |
| 10 | New Zealand (2001–2005) | 2.27 | 3.8 |
| 11 | Germany (Saxony) | 2.29 | 8 |
| 12 | Sweden (2001–2005) | 2.71 | 7.8 |
| 13 | Saudi Arabia | 2.88 | 2.5 |
| 14 | Australia | 3.14 | 3.6 |
| 15 | South America (2001–2005) | 3.2 | 1.6 |
| 16 | Canada | 3.84 | 5 |
ICBDSR International Clearinghouse for Birth Defects Surveillance and Research