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Characteristics of patients with stage I lung adenocarcinoma.
| Characteristic | n (%) |
|---|---|
| Sex | |
| Female | 212 (65) |
| Male | 113 (35) |
| Mean age at diagnosis (years) | |
| Overall | 61 |
| Female | 59 |
| Male | 64 |
| Histological subtype by the 2015 WHO Lung Adenocarcinoma Classification | |
| Adenocarcinoma in situ | 6 (2) |
| Minimally invasive adenocarcinoma | 15 (5) |
| Acinar-predominant | 137 (42) |
| Papillary-predominant | 66 (20) |
| Micropapillary-predominant | 18 (6) |
| Solid-predominant | 83 (25) |
| Stage | |
| IA | 253 (79) |
| IB | 72 (21) |
