Table 2.

Cox proportional hazard ratios of mortality from primary breast and colorectal cancer for HMO versus FFS patients

Breast cancer
Colorectal cancer
Hazard ratio (95% confidence interval)Hazard ratio (95% confidence interval)
Crude0.80 (0.78-0.83)0.89 (0.87-0.91)
Adjusted for stage at diagnosis0.86 (0.83-0.88)0.91 (0.89-0.93)
Further adjusted for other covariates*0.91 (0.88-0.93)0.94 (0.92-0.97)
  • * Includes age, race, marital status, census track income and education, and gender (the latter, for colorectal cancer only).