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Characteristics of NSCLC patients and cancer-free smokers in cohort 1*.
| NSCLC cases (n = 30) | Controls (n = 30) | |
|---|---|---|
| Age | 66.32 (SD 11.37) | 65.79 (SD 11.33) |
| Sex | ||
| Female | 12 | 12 |
| Male | 18 | 18 |
| Race | ||
| White | 10 | 10 |
| African American | 20 | 20 |
| Pack-years (median) | 36.29 | 35.78 |
| Stage | all are stage I | |
| Histological type | ||
| Adenocarcinoma | 16 | |
| Squamous cell carcinoma | 14 | |
| Locations | ||
| Central tumors | 13 | |
| Peripheral tumors | 17 |
Abbreviations: NSCLC, non-small cell lung cancer.
All P>0.05.
