Table 2.
Clinicopathological characteristics of pre-/minimally invasive adenocarcinomas and invasive adenocarcinomas after propensity score matching
| Variables (n, %) | AIS/MIA (n = 124) | IAC (n = 124) | |
|---|---|---|---|
| Average age (year) | 53.6 ± 9.5 | 58.2 ± 9.8 | |
| Sex | P = 0.905 | ||
| Male | 39 (31.5) | 38 (30.6) | |
| Female | 85 (68.5) | 86 (69.4) | |
| Smoke status | P = 1.000 | ||
| Ever | 16 (12.9) | 16 (12.9) | |
| Never | 108 (87.1) | 108 (87.1) | |
| Median survival (year) | – | 13.5 | |
| 5-year DFS rate | 100% | 73.5% |
AIS, adenocarcinoma in situ; MIA, minimally invasive adenocarcinoma; IAC, invasive adenocarcinoma; GGO, ground-glass opacity; DFS, disease-specific survival