Table 2.
Univariate predictors of survival at 2 years
| Total No | No (%) of deaths at 2 years | P value (χ2) | |
|---|---|---|---|
| Age group (years) | |||
| <60 | 686 | 210 (30.6) | <0.001 |
| 60-69 | 828 | 267 (32.2) | |
| 70-79 | 1071 | 381 (35.6) | |
| ⩾80 | 550 | 238 (43.3) | |
| Duke’s stage | |||
| A | 93 | 10 (10.8) | |
| B | 1319 | 253 (19.2) | |
| C | 740 | 254 (34.3) | <0.001 |
| D | 643 | 410 (63.8) | |
| Not known | 340 | 169 (49.7) | |
| Differentiation | |||
| Well differentiated | 280 | 70 (25.0) | <0.001 |
| Moderate | 2088 | 646 (30.9) | |
| Poor | 413 | 206 (49.9) | |
| Not known | 354 | 174 (49.2) | |
| Liver deemed clear by surgeon at operation | |||
| Yes | 2171 | 623 (28.7) | |
| No | 469 | 324 (69.1) | <0.001 |
| Not known | 495 | 149 (30.1) | |
| Type of procedure | |||
| Elective+curative intent | 1798 | 393 (21.9) | |
| Elective+palliative intent | 576 | 399 (69.3) | |
| Emergency+curative intent | 261 | 81 (31.0) | <0.001 |
| Emergency+palliative intent | 169 | 123 (72.8) | |
| Not known | 331 | 100 (30.2) | |