Fig 3.

Adjusted hazard ratios (95% CIs) of death in Veterans Health Administration (VHA) versus fee-for-service (FFS)–Medicare patients with cancer with and without adjustment for receipt of guideline-recommended therapy. Values were adjusted by using a Cox proportional hazard model with standardized mortality ratio (SMR) propensity weights. SMR-weighted effects estimated the survival rate that a typical VHA patient would have experienced in FFS Medicare. Blue diamonds depict hazard ratios that were adjusted for sociodemographic characteristics, comorbidity, tumor size, and stage at diagnosis. Gold squares depict hazard ratios when receipt of therapy was also included in the propensity score model. CHOP, cyclophosphamide, doxorubicin, vincristine, and prednisone; NSCLC, non–small-cell lung cancer.