From: Association of the MTHFR 677C>T and 1298A>C polymorphisms and male infertility risk: a meta-analysis
Variables | Cases/Controls | CC vs. AA | CA vs. AA | CC + CA vs. AA | CC vs. CA + AA | ||||
OR(95% CI) | P * | OR (95% CI) | P * | OR (95% CI) | P * | OR (95% CI) | P * | ||
Total | 5893/6303 | 1.23 (0.97, 1.55) | 0.002 | 1.08 (0.96, 1.20) | p = 0.031 | 1.10 (0.99, 1.24) | 0.014 | 0.86 (0.68, 1.08) | 0.000 |
Ethnicity | Cases/Controls | TT vs. CC | TC vs. CC | TT + TC vs. CC | TT vs. TC + CC | ||||
OR(95% CI) | P * | OR (95% CI) | P * | OR (95% CI) | P * | OR (95% CI) | P * | ||
Asian | 4918/4782 | 1.23 (0.92, 1.64) | 0.010 | 1.11 (0.99, 1.25) | 0.227 | 1.13 (0.99, 1.30) | 0.050 | 0.87 (0.67, 1.13) | 0.006 |
Caucasian | 1065/1521 | 1.21 (0.96, 1.53) | 0.258 | 0.88 (0.74, 1.05) | 0.370 | 0.91 (0.78, 1.07) | 0.671 | 0.82 (0.52, 1.30) | 0.096 |