Table 4.
Multivariable Cox proportional hazard ratios for all-cause mortality with stepwise adjustments for patient characteristics.
| Median OS (years) | Unadjusted | Model 1 | Model 2 | Model 3 | Model 4 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | ||
| NHW | 3.4 | Ref. | Ref. | Ref. | Ref. | Ref. | |||||
| NHB | 2.5 | 1.15 (0.95–1.37) | 0.145 | 1.24 (1.03–1.49) | 0.020 | 1.19 (0.93–1.50) | 0.161 | 0.92 (0.63–1.35) | 0.673 | 0.82 (0.50–1.34) | 0.427 |
| Hispanic | 4 | 0.92 (0.70–1.22) | 0.573 | 0.97 (0.73–1.29) | 0.846 | 1.05 (0.72–1.52) | 0.811 | 0.93 (0.57–1.52) | 0.082 | 0.60 (0.29–1.23) | 0.162 |
| NHO | 7.9 | 0.61 (0.39–0.95) | 0.029 | 0.72 (0.46–1.13) | 0.151 | 0.61 (0.36–1.04) | 0.069 | 0.61 (0.29–1.32) | 0.210 | 0.70 (0.32–1.52) | 0.367 |
| Overall P among groups | 0.059 | 0.050 | 0.133 | 0.631 | 0.377 | ||||||
Model 1 adjusted for demographic variables only (age, sex). Model 2 added sociodemographic and lifestyle variables (education, marital status, smoking, alcohol consumption, BMI). Model 3 added physiologic variables (BU cardiac stage, dFLC >180 mg/mL). Model 4 added stem cell transplantation treatment. The overall P value derived by Type III test estimated the effect of race/ethnicity in each model.
OS overall survival, HR hazard ratio, CI confidence interval, ref. reference group.
Bold values signify statistical significance.