Table 1

Variable	Controls	Patients	Statistics
N	24	24
Age	78.5 (69-88)	77 (60-89)	pM = 0.951
Heart rate	64 ± 9 (45 – 81)	75 ± 19 (46 – 120)	pt = 0.012*
BPsyst	151.5 (110 – 173)	117 (85 – 175)	pM< 0.0005**
BPdiast	82 (61 – 105)	75 (45 – 90)	pM = 0.003**
NT-proBNP	110 (46 – 580)	4580 (570 – 35000)	pM < 0.0005**
NYHA class	0	3 (1-3)	pM< 0.0005**

Results shown in mean ± standard deviation (min-max) for data having normal
distribution (heart rate), for all others the median (min-max) is shown.
pt = Sig.(2-tailed) of independent-samples t-test (normal distributed data)
pM = Sig.(2-tailed) of Mann–Whitney U test
** Significant at the 0.01 level
* Significant at the 0.05 level

Table 1: Test for significant differences between controls and patients: Independent sample t-test for normally distributed data, Mann-Whitney U test as distribution-free test.