Table 2.

Main echocardiographic diagnosis at baseline

Echocardiographic diagnosis	Benazepril (n = 77)	Placebo (n = 74)	P value
Hypertrophic cardiomyopathy	28	33	.32
Hypertrophic obstructive cardiomyopathy	12	19	.16
Restrictive cardiomyopathy	10	4	.16
Unclassified cardiomyopathy	8	6	.78
Dilated cardiomyopathy	4	7	.36
Mitral valve dysplasia	4	1	.37
Aortic stenosisa	3	0	.25
Ventricular septal defect plus mitral or tricuspid valve dysplasia	3	0	.25
Ventricular septal defect	2	2	1.0
Atrial septal defect	1	0	1.0
Mitral valve regurgitation	1	0	1.0
Tricuspid valve insufficiency	0	1	.49
Not recorded	1	1	1.0

Notes: Data are number of cases in each group at baseline. P values were calculated with Fisher's exact test.

^aOne case of hypertrophic cardiomyopathy in the benazepril group had in addition aortic stenosis.