Adjusted average annual costs of cancer for integrated delivery network (IDN) versus non-IDN hospitals in (A) initial, (B) continuing, and (C) end-of-life phases for cancers with the lowest 5- year survival. Adjusted for patient (age, sex, number of Charlson comorbidities, marital status), hospital (geographic region, number of beds, urban/rural, hospital ownership, surgical volume), and cancer (stage, grade) characteristics. *P < .05.