Table 2.

Qualitative Comparison of Demographics and Clinical Characteristics of PROSE‐ICD (as of December 31, 2011) With ICD Arms of MADIT‐II and SCD‐HeFT Trial. Total Number of Patients Enrolled in MADIT II and SCD‐HeFT Are 1232 and 2521, Respectively. Description Below Only Includes Those in ICD Arms of the Studies

Characteristic	PROSE‐ICD (n=1177)	MADIT‐II6 (n=742)	SCD‐HeFT5 (n=829)
Age, y	61±13	64±10	60.1*
Sex, male	73	84	77
Race, nonwhite	43	0	23
Smoking	67	80	—
Diabetes	35	33	31
Hypertension	63	53	55
LVEF	23±8	23±5	24*
NYHA class
Class I	17	35	0
Class II	43	35	70
Class III	38	25	30
Class IV	1	5	0
Cardiomyopathy, ischemic	54	100	52

Data expressed as mean±SD or percentage, unless otherwise indicated. PROSE‐ICD indicates Prospective Observational Study of Implantable Cardioverter‐Defibrillators; MADIT‐II, Multicenter Automatic Defibrillator Implantation Trial‐II; SCD‐HeFT, Sudden Cardiac Death in Heart Failure Trial; LVEF, left ventricular ejection fraction; NYHA, New York Heart Association.

^*Median.