Table 1. The demographics of severe and moderate congestive heart failure patients vs. healthy subjects. Data are given as mean ± SE, and/or range in parenthesis.

	NYHA IV n = 20	NYHA II n = 15	Healthy n = 10
Age	85.5 ± 1.2 (78–96)*	76.5 ± 1.9 (68–84)	67.6 ± 3.0 (56–81)
Sex, F/M	8/12	5/10	6/4
BMI, kg/m2	24.6 (19–34)	26.4 (20–34)	28.4 (24–35)
MABP	94 ± 3.6	101 ± 3.2	90 ± 3.0
Pulse/min	74 (60–90)	74 (52–110)	70 (56–86)

NYHA: New York Heart Association classification; BMI: Body mass index; MABP: Mean arterial blood pressure. *P < 0.05 NYHA IV vs. NYHA II.