Table 2.
Baseline characteristics of the patients with lung nodules/GGNs.
| Healthy participants and benign pulmonary diseases | Pulmonary malignant or borderline disease patients | P-value | |
|---|---|---|---|
| Age, years (mean) | 56 (18–87) | 57 (18–87) | |
| Sex, n (%): | |||
| Male | 134 (58.5%) | 166 (53.4%) | 0.235 |
| Female | 95 (41.5%) | 145 (46.6%) | |
| Smoking history, n (%): | |||
| Never | 142 (62.0%) | 193 (62.1%) | 0.991 |
| Ever/current | 87 (38.0%) | 118 (37.9%) | |
| GGNs/nodules size (mean): | 16.73 mm | 17.72 mm | |
| ≤8 mm, n (%) | 37 (16.2%) | 64 (20.6%) | 0.193 |
| >8 mm, n (%) | 192 (83.8%) | 247 (79.4%) | |
| Number of nodules, n (%): | |||
| 1 | 202 (99.0%) | 205 (97.6%) | 0.469 |
| >1 | 2 (1.0%) | 5 (2.4%) | |
| Number of GGNs, n (%): | |||
| 1 | 25 (100.0%) | 104 (97.2%) | 0.919 |
| >1 | 0 (0.0%) | 3 (2.8%) | |
| T stages, n (%): | |||
| 1 | 0 (0.0%) | 262 (84.2%) | — |
| 2 | 0 (0.0%) | 30 (9.6%) | |
| 3 | 0 (0.0%) | 3 (1.0%) | |
| 4 | 0 (0.0%) | 16 (5.1%) | |
| Pathological outcome, n (%): | |||
| Positive | 16 (7.0%) | 151 (48.6%) | 0.000 |
| Negative | 213 (93.0%) | 160 (51.4%) |
GGN, ground-glass nodule.