Table 1. General characteristics.
| Characteristic | Total (n=224) | Group 1 (AIS + MIA <1 cm) (n=194) | Group 2 (AIS + MIA ≥1 cm) (n=30) | P value |
|---|---|---|---|---|
| Age (years) | 50.71 (±12.057; 24–79) | 48.92 (±11.172; 24–76) | 62.27 (±11.298; 39–79) | <0.001* |
| Gender | 0.230 | |||
| Male | 55 (24.6%) | 45 (23.2%) | 10 (33.3%) | |
| Female | 169 (75.4%) | 149 (76.8%) | 20 (66.7%) | |
| Smoking history | 25 (11.2%) | 19 (9.8%) | 6 (20%) | 0.117 |
| Family tumor history | 85 (37.9%) | 74 (38.1%) | 11 (36.6%) | 0.877 |
| Follow-up (months) | 16.80 (±17.982) | 16.56 (±18.057) | 18.37 (±17.709) | 0.610 |
Data are presented as mean (SD), range (–) or n (%). *P<0.05. AIS, adenocarcinoma in situ; MIA, minimally invasive adenocarcinoma; SD, standard deviation.