Multivariate Cox proportional hazards model for survival (N = 1617)
| Variable . | Relative risk . | 95% CI . | P . |
|---|---|---|---|
| Age, y | 1.05 | 1.04-1.06 | < .001 |
| ALC | 1.37 | 1.17-1.60 | < .001 |
| β-2M | 1.17 | 1.12-1.23 | < .001 |
| Nodal groups of 3 versus less than 3 | 1.48 | 1.21-1.83 | .002 |
| Rai stage III or IV versus 0 to II | 1.49 | 1.16-1.92 | .002 |
| Sex, male versus female | 1.31 | 1.07-1.60 | .009 |
| Variable . | Relative risk . | 95% CI . | P . |
|---|---|---|---|
| Age, y | 1.05 | 1.04-1.06 | < .001 |
| ALC | 1.37 | 1.17-1.60 | < .001 |
| β-2M | 1.17 | 1.12-1.23 | < .001 |
| Nodal groups of 3 versus less than 3 | 1.48 | 1.21-1.83 | .002 |
| Rai stage III or IV versus 0 to II | 1.49 | 1.16-1.92 | .002 |
| Sex, male versus female | 1.31 | 1.07-1.60 | .009 |
CI indicates confidence interval; ALC, absolute lymphocyte count; β-2M, β-2 microglobulin; Rai Stage III or IV, hemoglobin level less than 110 g/L (11 g/dL) or platelet count less than 100 × 109/L.