TABLE 3.
SIPTW Multivariable Cox Proportional Hazards Model of the Association Between Treatment and 10-Year Mortality in Doubly Robust Analysisa
| Variable | Reference | HR (95% CI) | P |
|---|---|---|---|
| Treatment 6 mo after diagnosis | Yes vs no (reference) | 0.66 (0.52-0.84) | <.01 |
| Multiple chronic conditions at baseline | Yes vs no (reference) | 1.76 (1.46-2.13) | <.01 |
| Age | 1.08 (1.07-1.09) | <.01 | |
| Sex | Female vs male (reference) | 0.77 (0.62-0.96) | .02 |
| Health system | KPNW vs Geisinger (reference) | 1.14 (0.95-1.37) | .16 |
| Race/ethnicity | Nonwhite vs white (reference) | 1.20 (0.84-1.73) | .31 |
| AJCC stage of disease/grade | 0A/high vs 0A/low (reference) | 1.13 (0.89-1.44) | .30 |
| 0IS/high vs 0A/low (reference) | 1.10 (0.78-1.54) | .60 | |
| I/high vs 0A/low (reference) | 1.68 (1.38-2.04) | <.01 |
Abbreviations: 95% CI, 95% confidence interval; AJCC, American Joint Committee on Cancer; HR, hazard ratio; KPNW, Kaiser Permanente Northwest; SIPTW, stabilized inverse probability of treatment weights.
a
The analysis excluded 18 patients for whom information regarding stage of disease and grade was missing.