Table 1. Baseline Characteristics of Study Population (n = 100).
| Characteristic | GGN (n = 50) | Solid (n = 50) | P |
|---|---|---|---|
| Age, years, mean ± SD | 60.4 ± 10.4 | 64.0 ± 10.6 | 0.092 |
| Sex (%) | 0.007 | ||
| Male | 11 (22.0) | 24 (48.0) | |
| Female | 39 (78.0) | 26 (52.0) | |
| Tumor size, mm, mean ± SD | 16.3 ± 5.3 | 20.7 ± 6.9 | 0.001 |
| Pathology (%) | |||
| Minimally invasive adenocarcinoma | 7 (14.0) | ||
| Invasive adenocarcinoma | 40 (80.0) | 37 (74.0) | |
| Mucinous invasive adenocarcinoma | 3 (6.0) | 6 (12.0) | |
| Squamous cell carcinoma | 4 (8.0) | ||
| Small cell lung cancer | 2 (4.0) | ||
| Pleomorphic carcinoma | 1 (2.0) | ||
| Location (%) | 14 (28.0) | 12 (24.0) | |
| Right upper lobe | 1 (2.0) | 6 (12.0) | |
| Right middle lobe | 13 (26.0) | 15 (30.0) | |
| Right lower lobe | 14 (28.0) | 12 (24.0) | |
| Left upper lobe | 8 (16.0) | 5 (10.0) | |
| Left lower lobe |
GGN = ground-glass nodule, SD = standard deviation