Results of multivariate analyses: final prognostic model
| Variable before treatment initiation . | Parameter estimate . | SE . | Hazard ratio . | 95% CI . |
|---|---|---|---|---|
| Age > 65 y | 1.02687 | 0.14402 | 2.792 | 2.11-3.70 |
| Hemoglobin ≤ 11.5 g/dL | 0.37574 | 0.15491 | 1.456 | 1.07-1.97 |
| Platelet count ≤ 100 × 109/L | 0.67804 | 0.19472 | 1.970 | 1.35-2.89 |
| β2-microglobulin > 3 mg/L | 0.49382 | 0.13986 | 1.639 | 1.25-2.16 |
| Monoclonal IgM concentration > 7.0 g/dL | 0.53163 | 0.20429 | 1.702 | 1.14-2.54 |
| Variable before treatment initiation . | Parameter estimate . | SE . | Hazard ratio . | 95% CI . |
|---|---|---|---|---|
| Age > 65 y | 1.02687 | 0.14402 | 2.792 | 2.11-3.70 |
| Hemoglobin ≤ 11.5 g/dL | 0.37574 | 0.15491 | 1.456 | 1.07-1.97 |
| Platelet count ≤ 100 × 109/L | 0.67804 | 0.19472 | 1.970 | 1.35-2.89 |
| β2-microglobulin > 3 mg/L | 0.49382 | 0.13986 | 1.639 | 1.25-2.16 |
| Monoclonal IgM concentration > 7.0 g/dL | 0.53163 | 0.20429 | 1.702 | 1.14-2.54 |
SE indicates standard error; and CI, confidence interval.