Analysis of prognostic variables in a forward, stepwise multivariate Cox proportional hazards model. Only cases with complete data for all prognostic variables were included in this model (n = 101)
| Variable | p value | Hazard ratio | 95% Confidence intervals | |
| Cell type | 0.0004 | 2.33 | 1.46 | 3.72 |
| Haemoglobin | 0.0004 | 1.27 | 1.11 | 1.43 |
| White cell count | 0.001 | 1.11 | 1.04 | 1.19 |
| Performance status | 0.005 | 2.01 | 1.24 | 3.28 |
| Sex | 0.008 | 3.13 | 1.33 | 7.14 |