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Frequency of GSTM1 Null Gene Polymorphisms in the Studied Groups
| GSTM1 Genotype | Null (-) | Non Null (+) | χ2 | P-value | OR |
|---|---|---|---|---|---|
| Cases (n = 64) | 48 (75%) | 16 (25%) | 3.99 | 0.046* | 6.6 |
| Control (n = 64) | 20 (31.2%) | 44 (68.8%) | 95% CI: 3.04 to 14.32 |
Note: *Statistically significant.
Abbreviations: χ2, chi-square; OR, odds ratio; CI, confidence interval.
