However , for the change in central aortic diastolic pressure , the least squares mean between-treatment difference ( -3.6 mmHg [ 95 % confidence interval , -6.76 , -0.43 ; P = 0.0263 ] ) was in favor of aliskiren , while the other changes were comparable between the two groups with a trend in favor of aliskiren for CASP as well ( -2.6 mmHg [ 95 % confidence interval , -7.38 , 2.19 ; P = 0.2855 ) ] .