TABLE 2.
Stage distribution of all cases (12 063) included in analyses
| Pathologic stage group | Number of patients (n = 12 063) | 1‐year survival, % | 2‐year survival, % | 3‐year survival, % | 4‐year survival, % | 5‐year survival, % | Median survival (months) |
Median survival lower 95% CI |
Median survival upper 95% CI |
|---|---|---|---|---|---|---|---|---|---|
| IA | 653 | 98.0 | 97.0 | 93.7 | 92.0 | 86.3 | . | . | . |
| IB | 7604 | 96.6 | 91.1 | 86.4 | 81.7 | 77.1 | . | . | . |
| II | 500 | 93.4 | 83.2 | 74.2 | 68.3 | 64.5 | 100.0 | 90.4 | . |
| IIIA | 676 | 90.1 | 76.9 | 69.4 | 63.6 | 60.3 | 86.7 | 71.1 | 109.6 |
| IIIB | 1043 | 84.5 | 67.4 | 58.2 | 52.4 | 49.6 | 57.8 | 45.3 | 74.6 |
| IIIC | 707 | 68.4 | 47.0 | 40.4 | 37.2 | 31.3 | 20.8 | 18.3 | 24.9 |
| IVA | 70 | 55.6 | 40.7 | 34.5 | 25.9 | 25.9 | 16.8 | 10.7 | 30.8 |
| IVB | 810 | 44.7 | 29.4 | 23.5 | 20.4 | 18.3 | 9.2 | 8.0 | 10.9 |