Table 1.

Patient Characteristics at Baseline

Characteristic	All Patients (n = 973)	Women (n = 390)	Men (n = 583)	P Value
Age, mean (SD), y	66.1 (14.4)	69.4 (12.9)	63.9 (14.8)	<.001
BMI, mean (SD)	28.9 (6.6)	28.9 (6.7)	28.9 (6.6)	.93
Coronary artery disease, No. (%)	233 (24)	64 (16)	169 (29)	<.001
Congestive heart failure, No. (%)	288 (30)	102 (26)	186 (32)	.05
Hypertension, No. (%)	478 (49)	217 (56)	261 (45)	.001
Arial flutter, No. (%)	112 (12)	29 (7)	83 (14)	.001

Abbreviation: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared).