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.