Table 1.
Characteristics of eligible studies in meta-analysis
| First author | Year | Country | Ethnicity | Number | Age of subjects | Genotyping method | |
|---|---|---|---|---|---|---|---|
|
| |||||||
| Patients | Controls | ||||||
| Loeff | 2012 | Chile | Latin Americans | 104 | 104 | Children | Taqman assays |
| Wolters | 2007 | Netherlands | Europeans | 421 | 1624 | Children and adults | Taqman assays |
| Latiano | 2007 | Italy | Europeans | 337 | 452 | Children and adults | Taqman assays |
| Sánchez | 2007 | Spain | Europeans | 90 | 345 | NR | Taqman assays |
| Cirillo | 2007 | Italy | Europeans | 223 | 600 | Children | PCR-RFLP |
| Núñez | 2006 | Spain | Europeans | 415 | 433 | NR | Taqman assays |
| Hunt | 2006 | UK | Europeans | 375 | 1336 | Children and adults | Taqman and Sequenom methods |
NR, not reported; PCR-RFLP, polymerase chain reaction-restriction fragment length polymorphism; UK, united kingdom.