Table 7.
Survival (percentage and 95% confidence intervals) between 6 and 10 years after surgery for esophageal cancer, stratified by Charlson comorbidity index
| Year | Number | Observed survival | Relative survival |
|---|---|---|---|
| Charlson comorbidity index 0 | |||
| 6 | 355 | 95.8 (93.7–97.9) | 98.0 (95.9–100.1) |
| 7 | 312 | 91.2 (88.2–94.2) | 95.5 (93.3–98.6) |
| 8 | 258 | 87.6 (84.0–91.3) | 93.9 (90.1–97.8) |
| 9 | 225 | 83.7 (79.6–87.9) | 91.5 (86.9–96.1) |
| 10 | 191 | 79.8 (75.1–84.5) | 89.3 (84.0–94.6) |
| Charlson comorbidity index 1 | |||
| 6 | 250 | 94.4 (91.6–97.3) | 96.7 (93.8–99.6) |
| 7 | 217 | 85.7 (81.2–90.2) | 89.9 (85.2–94.6) |
| 8 | 178 | 74.6 (68.7–80.4) | 86.2 (80.5–91.8) |
| 9 | 149 | 74.6 (68.7–80.4) | 83.0 (76.5–87.5) |
| 10 | 121 | 68.4 (61.9–74.9) | 78.4 (71.0–85.9) |
| Charlson comorbidity index 2 | |||
| 6 | 157 | 87.9 (82.8–93.0) | 90.7 (85.5–96.0) |
| 7 | 124 | 82.9 (76.9–88.9) | 88.1 (81.7–94.4) |
| 8 | 104 | 76.6 (69.6–83.5) | 84.4 (76.7–92.1) |
| 9 | 89 | 72.3 (64.7–79.8) | 82.9 (74.3–91.5) |
| 10 | 79 | 65.9 (57.6–74.1) | 78.7 (68.9–88.6) |