Table 3. Multivariable Cox-regression analysis of prognostic factors for patients in the training cohort.
| Overall survival |
|||||
|---|---|---|---|---|---|
| Variables | HR | 95% CI | B | Score pointsa | P-value |
|
Tumour number (n) |
<0.001 | ||||
| ⩽3 | 1 | — | 0 | ||
| >3 | 2.22 | 1.53–3.22 | 0.80 | 2 | |
|
Tumour size (cm)b |
0.004 | ||||
| ⩽6 | 1 | — | 0 | ||
| 6–9 | 1.30 | 1.16–1.93 | 0.26 | 1 | |
| ⩾9 | 1.93 | 1.23–2.99 | 0.66 | 2 | |
|
Prothrombin time, s |
0.018 | ||||
| ⩽12 | 1 | — | 0 | ||
| >12 | 1.48 | 1.06–2.05 | 0.39 | 1 | |
Abbreviations: HR=hazard ratio; CI=confidence interval.
a
The regression coefficients (B) were multiplied by 3 and rounded to facilitate bedside calculation of the score.
b
Maximum tumour size.