Document Classification

Section Type: RESULTS

Text: At 12 years, the rate of overall survival was 94 % among those receiving ABVD alone, as compared with 87 % among those receiving subtotal nodal radiation therapy (hazard ratio for death with ABVD alone, 0. 50 ; 95 % confidence interval [CI], 0. 25 to 0. 99 ; P = 0. 04) ; the rates of freedom from disease progression were 87 % and 92 % in the two groups, respectively (hazard ratio for disease progression, 1. 91 ; 95 % CI, 0. 99 to 3. 69 ; P = 0. 05) ; and the rates of event-free survival were 85 % and 80 %, respectively (hazard ratio for event, 0. 88 ; 95 % CI, 0. 54 to 1. 43 ; P = 0. 60).