Document Classification

Section Type: RESULTS

Text: Of 1212 randomized patients, 435 (36 %) had none/trace MR, 554 (46 %) had mild MR, 181 (15 %) had moderate MR, and 39 (3 %) had severe MR. In the medical arm, 70 deaths (32 %) occurred in patients with none/trace MR, 114 (44 %) in those with mild MR, and 58 (50 %) in those with moderate to severe MR. In patients with moderate to severe MR, there were 29 deaths (53 %) among 55 patients randomized to CABG who did not receive mitral surgery (hazard ratio versus medical therapy, 1. 20 ; 95 % confidence interval, 0. 77-1. 87) and 21 deaths (43 %) among 49 patients who received mitral surgery (hazard ratio versus medical therapy, 0. 62 ; 95 % confidence interval, 0. 35-1. 08).