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Allele frequencies of IL4 −590 (C>T) in asthma patients and controls.
| Gene position | Allele | Asthma patients number (%) | Controls number (%) | OR (95% CI) | P value |
|---|---|---|---|---|---|
| IL-4 −590 (C>T) | C | (92.71) 89 | (58) 29 | 9.21 (IC = 3.58−23.71) | 1 × 10−6∗ |
| EF | 0.826 | ||||
| T | (7.29) 7 | (42) 21 | 0.11 (IC = 0.04−0.28) | 1 × 10−6∗ | |
| PF | 0.374 | ||||
OR = odds ratio, CI = confidence intervals, EF = etiological fraction, and PF = preventive fraction. ∗Significant differences at P < 0.05 level by using Fisher's test.
