Table 1.
Incidence of intestinal atresias versus allelic incidence of factor V Leiden
| Region/country | Incidence of small intestine atresia | Allele frequency (%) of factor V Leiden | |
|---|---|---|---|
| 1 | Spain (2001–2005) | 0.57 | 3.33 |
| 2 | Ireland (1995–2005) | 0.86 | 6.95 |
| 3 | Norway (1974–2005) | 0.9 | 3.7 |
| 4 | Chile (2002–2005) | 0.95 | 2.5 |
| 5 | Hungary (2001–2005) | 1.03 | 4.9 |
| 6 | UK | 1.04 | 3.61 |
| 7 | Finland | 1.12 | 4.2 |
| 8 | USA–Utah (2001–2005) | 1.32 | 4.2 |
| 9 | Italy (ISMAC) (2001–2005) | 1.5 | 2 |
| 10 | N. Netherlands (1985–2005) | 1.62 | 2.9 |
| 11 | Wales | 1.84 | 4 |
| 12 | Slovak (1995–2005) | 2.02 | 4 |
| 13 | New Zealand (2001–2005) | 2.27 | 3.8 |
| 14 | Germany (Northeastern) | 2.29 | 7 |
| 15 | Sweden (2001–2005) | 2.71 | 7.8 |
| 16 | Czech Republic (1995–2002) | 2.81 | 5.1 |
| 17 | Saudi Arabia | 2.88 | 1.3 |
| 18 | Australia | 3.14 | 3.6 |
| 19 | South America (2001–2005) | 3.2 | 1.6 |
| 20 | Canada | 3.84 | 5 |
| 21 | Japan (2001–2005) | 6.63 | 0 |
ICBDSR International Clearinghouse for Birth Defects Surveillance and Research