TABLE 4.
Overall and relative 5-year survival and estimated excess risk (RER) of death with 95% confidence intervals (95% CI) for operated esophageal cancer patients diagnosed 1994–2002
| Characteristic | N | OS (5 y) | RS (5 y) | OD (5 y) | Univariate | Multivariate | 95% CI | P value | ||
|---|---|---|---|---|---|---|---|---|---|---|
| ED (5 y) | RERa | 95% CI | RERa | |||||||
| Stage | <.0001 | |||||||||
| Stage 1 | 32 | 87.5% | 99.1% | 4 | 3.1 | .06 | .01–.32 | .05 | .01–.22 | |
| Stage 2A | 65 | 46.1% | 52.4% | 33 | 3.9 | .44 | .27–.70 | .39 | .24–.63 | |
| Stage 2B | 26 | 21.8% | 24.7% | 19 | 1.1 | .75 | .43–1.29 | .72 | .40–1.27 | |
| Stage 3+4 (reference) | 82 | 14.2% | 14.5% | 65 | 1.6 | 1.00 | 1.00 | |||
| Unknown | 8 | 16.7% | 18.0% | 6 | .2 | .99 | .41–2.35 | 1.62 | .65–4.01 | |
| Hospital type | .0126 | |||||||||
| Nonteaching (reference) | 58 | 24.9% | 27.3% | 40 | 2.3 | 1.00 | 1.00 | |||
| Teaching nonuniversity | 60 | 29.7% | 32.6% | 39 | 1.9 | .89 | .55–1.42 | 1.32 | .79–2.22 | |
| University | 95 | 44.3% | 49.2% | 48 | 5.6 | .48 | .30–.77 | .57 | .29–1.12 | |
| Age (y) | .0467 | |||||||||
| <50 (reference) | 24 | 47.6% | 48.6% | 11 | .2 | 1.00 | 1.00 | |||
| 50–59 | 67 | 32.1% | 33.6% | 42 | 1.2 | 1.73 | .87–3.44 | 1.51 | .74–3.04 | |
| 60–69 | 80 | 30.9% | 35.1% | 52 | 3.5 | 2.12 | 1.07–4.18 | 2.36 | 1.18–4.70 | |
| 70+ | 42 | 41.9% | 54.5% | 22 | 4.9 | 1.42 | .64–3.14 | 2.05 | .94–4.46 | |
| Hospital volume | .1125 | |||||||||
| <20 patients operated | 38 | 19.0% | 22.3% | 27 | 1.3 | 1.00 | 1.00 | |||
| ≥20 patients operated | 175 | 37.8% | 41.7% | 100 | 8.5 | .53 | .33–.83 | .62 | .34–1.12 | |
| Referral rate | .8080 | |||||||||
| High (>33.3%) | 115 | 35.4% | 39.2% | 66 | 5.2 | 1.00 | 1.00 | |||
| Low (≤ 33.3%) | 98 | 34.1% | 37.8% | 61 | 4.6 | 1.16 | .79–1.69 | .94 | .57–1.54 | |
OS, overall survival; RS, relative survival; OD, observed deaths; ED, expected deaths.
a Adjusted for time since diagnosis.