Distribution of GST M1 and GST T1 genotypes in patients with COPD and healthy subjects
| Wild type | Null type | |
| GST M13-150 | ||
| Control (n = 76) | 27 (35%) | 49 (65%) |
| COPD (n = 83) | 36 (43%) | 47 (57%) |
| OR (95% CI) | 1.0 | 1.39 (0.73 to 2.64) |
| OR (95% CI) smoking adjusted | 1.0 | 1.21 (0.58 to 2.51) |
| GST T1† | ||
| Control (n = 76) | 29 (38%) | 47 (62%) |
| COPD (n = 83) | 37 (45%) | 46 (55%) |
| OR (95% CI) | 1.0 | 1.30 (0.69 to 2.46) |
| OR (95% CI) smoking adjusted | 1.0 | 1.23 (0.60 to 2.53) |
↵3-150 p = 0.31, †p = 0.67 (χ2 test).