Table 1.
Comparison of clinical characteristics between patients with and without PIK3CA mutation
| PIK3CA positive (n = 23) (%) | PIK3CA negative (n = 787) (%) | P | |
|---|---|---|---|
| Gender | 0.48 | ||
| Male | 14 (60.9) | 421 (53.5) | |
| Female | 9 (39.1) | 366 (46.5) | |
| Age | 0.35 | ||
| <60 year | 10 (43.5) | 415 (52.7) | |
| ≥60 year | 13 (56.5) | 362 (47.3) | |
| Smoking status | 0.92 | ||
| Never | 13 (56.5) | 437 (55.5) | |
| Former/current | 10 (43.5) | 350 (44.5) | |
| Stage at diagnosis | 0.74 | ||
| I–II | 13 (56.5) | 472 (60.0) | |
| IIIA | 10 (43.5) | 315 (40.0) | |
| Surgical procedures | 0.41 | ||
| Lobectomy | 19 (82.6) | 689 (87.5) | |
| Pneumonectomy | 1 (4.3) | 45 (5.7) | |
| Others | 3 (13.1) | 53 (6.8) | |
| Adjuvant treatment | 0.99 | ||
| Yes | 18 (78.3) | 615 (78.1) | |
| No | 5 (21.7) | 172 (21.9) | |