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Table 1 Demographics and general characteristics of all patients and of subgroups (myocardial ischemia ≤10 and > 10%)

From: Early post-stress decrease in cardiac performance by impedance cardiography and its relationship to the severity and extent of ischemia by myocardial perfusion imaging

Parameter

All patients

N-198

Myocardial ischemia

≤10% - N 188

> 10% - N 10

P value

Myocardial ischemia (%)

2.4 ± 3.8%

1.8 ± 2.6%

14.4 ± 3.5%

> 0.001

Age (year), mean ± SD

61.8 ± 9.4

61.9 ± 9.4

60.4 ± 9.3

0.636

Male, n (%)

147 (74)

137 (72)

10 (100)

0.166

BMI (kg/m2), mean ± SD

27.5 ± 3.6

27.4 ± 3.5

29.5 ± 4.8

0.08

Diabetes mellitus, n (%)

58 (29.3)

54 (28.7)

3 (30)

0.923

Hypertension, n (%)

106 (53.5)

98 (52.1)

7 (70)

0.265

Smoking, n (%)

31 (15.7)

30 (16.0)

1 (10)

0.620

Dyslipidemia, n (%)

135 (68.2)

128

6 (60)

0.615

MI, n (%)

44 (22.2)

39 (20.7)

4 (40)

0.149

PTCA, n (%)

35 (17.7)

31 (16.5)

3 (30)

0.268

CABG, n (%)

10 (5.1)

9 (4.8)

1 (10)

0.894

PVD, n (%)

5 (2.5)

5 (2.7)

0

0.605

TIA, n (%)

1 (0.5)

1 (0.5)

0

0.819

Beta Blocker, n (%)

52 (26.0)

50 (26.6)

2 (20)

0.653

  1. BMI Body mass index, CABG Coronary artery bypass grafting, MI Myocardial infarction, PTCA Percutaneous transluminal coronary angioplasty, PVD Peripheral vascular disease, SD Standard deviation, TIA Transient ischemic attack