Table 1 Main characteristics of studies included in the meta-analysis
Study | Country | Ethnicity | Control source | Genotyping Methods | Sample size (case/control) |
|---|---|---|---|---|---|
Patel KR et al. [28] | India | Asian | healthy | PCR-RFLP | 79/110 |
Wang Z et al. [18] | USA | Caucasian | healthy | PCR-RFLP | 320/321 |
Ji X et al. [19] | USA | Caucasian | healthy | PCR-RFLP | 188/342 |
Kuroda Y et al. [29] | Japanese | Asian | Hospital | PCR-RFLP | 100/271 |
Kitkumthorn N et al. [30] | Thailand | Asian | healthy | PCR-RFLP | 78/94 |
Chen X et al. [31] | USA | Caucasian | healthy | PCR-RFLP | 326/349 |
Zemleduch T et al. [32] | Caucasian | Caucasian | healthy | PCR-RFLP | 123/300 |
Ihsan R et al. [33] | India | Asian | healthy | PCR-RFLP | 116/278 |
Tu HF et al. [34] | Taiwan | Asian | healthy | DNA sequence | 189/116 |
Summersgill KF et al. [20] | USA | Caucasian | Hospital | PCR-CTPP | 190/308 |
Misra C et al. [35] | India | Asian | Hospital | PCR-RFLP | 308/342 |
Lin YC et al. [36] | Taiwan | Asian | unknown | PCR-RFLP | 297/280 |
Saini R et al. [37] | Malaysia | Asian | healthy | PCR-CTPP | 99/90 |