TABLE 2.
Demographic and Clinical Data of Lung Cancer Patients and Cancer-Free Controls in a Testing Set
| Parameter | Lung Cancer Patients | % | Cancer-Free Controls | % |
|---|---|---|---|---|
| Total No. | 64 | 73 | ||
| Age, yr (SD) | 66 (9) | 64 (8) | ||
| Sex | ||||
| Men | 41 | 64.1 | 48 | 65.8 |
| Women | 23 | 35.9 | 25 | 34.2 |
| Race | ||||
| White American | 39 | 60.9 | 43 | 58.9 |
| African American | 25 | 39.1 | 30 | 41.1 |
| Smoking, pack-years (SD) | 55 (16) | 50 (17) | ||
| Nodule size (cm), median (SD) | 2.7 (1.2) | 1.2 (0.6) | ||
| Histology | ||||
| Adenocarcinoma | 30 | 46.8 | ||
| Squamous-cell carcinoma | 28 | 43.8 | ||
| Small-cell carcinoma | 6 | 9.4 | ||
| Stage of 58 NSCLC | ||||
| I | 19 | 32.8 | ||
| II | 19 | 32.8 | ||
| III–IV | 20 | 34.4 |
NSCLC, non–small-cell lung cancer.