Table 1. Patient demographics and nodule characteristics (N = 311).
| Characteristic | N | % |
|---|---|---|
| Age (years) | ||
| Range | 19–87 | |
| Mean | 59.6 | |
| Sex | ||
| Male | 211 | 67.8 |
| Female | 100 | 32.2 |
| Size of Pulmonary Nodule | ||
| >10 mm | 3 | 1 |
| >10 mm and ≤20 mm | 152 | 48.8 |
| >20 mm and ≤20 mm | 156 | 50.2 |
| Location of Pulmonary Nodule | ||
| Peripheral | 221 | 71.1 |
| Central | 90 | 28.9 |
| Left upper lobe | 76 | 24.4 |
| Left lower lobe | 65 | 20.9 |
| Right upper lobe | 99 | 31.8 |
| Right middle lobe | 14 | 45 |
| Right lower lobe | 57 | 18.3 |
| Smoker | ||
| Yes | 153 | 49.2 |
| No | 158 | 50.8 |
| History of cancer | ||
| Yes | 19 | 6.1 |
| No | 292 | 93.9 |