Document Classification

Section Type: RESULTS

Text: A history of sustained ventricular tachycardia/fibrillation (hazard ratio [HR] : 1. 93 [95 % confidence interval (CI) : 1. 47 to 2. 54]), previous atrial fibrillation/flutter (HR : 1. 63 [95 % CI : 1. 22 to 2. 18]), exercise-induced dysrhythmia (HR : 1. 67 [95 % CI : 1. 23 to 2. 26]), lower diastolic blood pressure (HR for 5-mm Hg decrease < 60 : 1. 35 [95 % CI : 1. 12 to 1. 61]), and nonwhite race (HR : 1. 50 [95 % CI : 1. 13 to 2. 00]) were associated with an increased risk of ICD shocks.