Reductions in risk of hospitalization for unstable angina ( hazard ratio , 0.55 ; 95 % confidence interval , 0.29 to 1.04 ) and diagnosis of new ischemic heart disease ( hazard ratio , 0.52 ; 95 % confidence interval , 0.26 to 1.04 ) nearly reached significance ( P = 0.06 for both comparisons ) .
