Table 1.
Demographics and characteristics of stage I NSCLC patients and healthy participants
| Characteristics | NSCLC patients (n = 232) | Healthy participants (n = 78) |
|---|---|---|
| Age, years (mean, range) | 56.0 years (28–79) | 45.0 years (21–72) |
| Sex, n (%) | ||
| Male | 90 (38.8%) | 43 (55.1%) |
| Female | 142 (61.2%) | 35 (44.9%) |
| Smoking history, n (%) | ||
| No | 158 (68.1%) | 72 (73.1%) |
| Yes | 74 (31.9%) | 21 (26.9%) |
| Pathological types | ||
| AIS and MIA | 73 (31.5%) | — |
| IAC | 149 (64.2%) | — |
| Others | 10 (4.3%) | — |
| Nodule size on CT, n (%) | ||
| ≤10 mm | 52 (22.4%) | — |
| 10–20 mm | 122 (52.6%) | — |
| >20 mm | 58 (25.0%) | — |
| Nodule type classification on CT | ||
| Solid nodule | 92 (39.7%) | — |
| pGGNs | 66 (28.4%) | — |
| mGGNs | 74 (31.9%) | — |
AIS, adenocarcinoma in situ; CT, computed tomography; IAC, invasive adenocarcinoma; mGGNs, mixed ground‐glass nodules; MIA, minimally invasive adenocarcinoma; NSCLC, non‐small cell lung cancer; pGGNs, pure ground‐glass nodules.