Table 1.

Demographic and Medical Characteristics of Participants

Characteristic	All Patients				UC Group				AT Group				P
	No.	%	Mean	SD	No.	%	Mean	SD	No.	%	Mean	SD
No. of patients			90	100			43	48			47	52
Age, years			66	11			66	11			66	10	.861
Female sex			23	26			10	23			13	28	.632
Weight, kg			85.1	19.8			86.6	21.7			83.8	18.2	.507
BMI, kg/m2			28	6			29	8			28	5	.385
Heart rate, beats · min–1			71	11			72	11			70	11	.269
Systolic blood pressure, mmHg			116	19			117	20			115	18	.634
Diastolic blood pressure, mmHg			70	10			69	9			70	11	.422
NYHA class													.344
II			57	63			29	67			28	60
III			31	34			14	33			17	36
IV			2	2			0	0			2	4
Race/ethnicity													.810
White	59	66			28	65			31	67
African American	27	30			14	33			13	28
Other	3	3			1	2			2	4
Left ventricular ejection fraction, %			26	8			27	8			24	8	.188
Comorbid conditions
Diabetes			34	38			19	44			15	32	.230
Previous MI			44	49			18	42			26	55	.202
Hypertension			52	58			28	65			24	51	.177
Atrial fibrillation or atrial flutter			18	20			7	16			11	23	.398
Sodium			139.5	2.7			139.5	2.9			139.4	2.4	.941
Serum creatinine			1.5	1.3			1.4	0.5			1.6	1.8	.353
Medications and devices
ACE inhibitor or ARB			85	94			40	93			45	96	.573
Beta blocker			79	88			41	95			38	81	.036
Aldosterone			34	38			13	30			21	45	.157
Loop diuretic			65	72			33	77			32	68	.359
Digoxin			44	49			19	44			25	53	.393
Implantable cardioverter-defibrillator			35	39			15	35			20	43	.456
Biventricular pacemaker			16	18			8	19			8	17	.844

NOTE. Continuous variables are reported as mean and standard deviation (SD); categorical variables are reported as No. and %.

Abbreviations: ACE, angiotensin-converting enzyme; ARB, angiotensin II receptor blocker; AT, aerobic training; BMI, body mass index; MI, myocardial infarction; NYHA, New York Heart Association; UC, usual care.