Table 3 Subgroup analysis of the association between GSTM1 polymorphism and non-viral HC-based on cirrhosis type, ethnicity, controlled source and genotyping method
Subgroup | N | Test for association | Test for heterogeneity | ||
|---|---|---|---|---|---|
OR (95%CI) | p | I2 (%) | p | ||
Cirrhosis type | |||||
Alcoholic HC | 5 | 1.416 (1.112–1.804) | 0.005 | 30.4 | 0.219 |
Ethnics | |||||
Asian | 2 | 1.719 (1.212–2.438) | 0.002 | 0.0 | 0.987 |
Non-Asian | 4 | 1.097 (0.806–1.493) | 0.556 | 30.2 | 0.231 |
Control source | |||||
HB | 5 | 1.426 (1.092–1.863) | 0.009 | 44.6 | 0.125 |
Genotyping method | |||||
Multiple PCR | 4 | 1.559 (1.171–2.076) | 0.002 | 29.7 | 0.234 |