Table 3.
Multivariate Cox analysis for overall survival.
| HR | Std. Err. | z | P value | 95% CI | |
|---|---|---|---|---|---|
| Male sex | 1.92 | 0.421 | 1.55 | 0.121 | 0.84, 4.38 |
| D-S stage | 2.08 | 0.373 | 1.96 | 0.05 | 1.00, 4.32 |
| R-ISS | 1.64 | 0.396 | 1.25 | 0.212 | 0.75, 3.56 |
| HDM + ASCT | 0.26 | 0.608 | −2.23 | 0.026 | 0.08, 0.85 |
| Gr 3 (vs Gr 4) | 6.09 | 0.549 | 3.29 | <0.001 | 2.08, 17.85 |
| Gr 5 (vs Gr 4) | 5.08 | 0.513 | 3.16 | 0.002 | 1.86, 13.88 |
Abbreviations: D-S, Durie-Salmon; R-ISS, revised international staging system; HDM, high-dose melphalan; ASCT, autologous stem cell transplantation; Gr, group; HR, hazard ratio; Std. Err., standard error; CI, confidence interval.