A review of the Griffin Hospital database over the past three years indicates that 33.5% of CHF patients meeting our inclusion criteria were re-admitted to Griffin Hospital within 90 days. Though the patient population is quite stable and most CHF patients needing readmission probably return to this facility, we assume that an additional 5% were admitted elsewhere during the 90 days following discharge from Griffin Hospital. In addition, based on previously conducted studies of educational interventions in CHF (19), we expect that an additional 6% will die within this period. Thus, we base our calculations on 45% of the usual care group experiencing all-cause readmission or death within 90 days of discharge. For the educational group we based our calculations on a 25% absolute decrease in these events during the same time period (i.e., 20% will be re-admitted or die). This is a clinically meaningful decrease and is consistent with the difference in readmissions/deaths between control and educational intervention groups in a recent CHF outpatient study.