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Statistically significant difference of the distribution of TGF-β1 genotypes in group 1 (COPD) according to COPD stages
| Group 1 (COPD) | Genetic polymorphism of TGF-β1 gene | X2=12.63 | |||
|---|---|---|---|---|---|
| Pro-Leu No. = 7 | Leu-Leu No. = 18 | ||||
| Stage II | No. | 5 | 1 | p < 0.01 | |
| % | 71.4 | 5.5 | |||
| Stage III | No. | 2 | 12 | ||
| % | 28.6 | 66.7 | |||
| Stage IV | No. | 0 | 5 | ||
| % | 0 | 27.7 | |||
