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Kirsten-rat sarcoma oncogene homolog exon 2 mutation frequency according to gender and smoking history.
| Smoking status | ||||
|---|---|---|---|---|
| Gender | Smokers (%) | Ex-smokers (%) | Non smokers (%) | P-value |
| Male | 50/258 (19.38) | 11/63 (17.46) | 18/90 (20) | 0.9207 |
| Female | 15/76 (19.73) | 2/12 (16.67) | 10/62 (16.12) | 0.8535 |
| Total | 65/334 (19.46) | 13/75 (17.33) | 28/152 (18.42) | 0.8997 |
