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Table 1 Clinical characteristics and echocardiographic data in the 3 angiographic categories, according to QCA results.

From: Incremental value of contrast myocardial perfusion to detect intermediate versus severe coronary artery stenosis during stress-echocardiography

Study group n = 150

No CAD

CAD 50%-70%

CAD > 70%

p value

Patients n (%*)

48

41

61

-

Age, mean(± 1 SD), y

64 (10)

69 (9)

70 (9)

ns

Men, n (%)

26 (54)

24 (59)

40 (65)

ns

Risk factors ≥2, n (%)

37 (77)

34 (85)

51 (84)

ns

Hypertension, n (%)

32 (67)

30 (73)

42 (69)

ns

Diabetes Mellitus n (%)

6 (13)

12 (29)

19 (31)

ns

Prior myocardial infarction or PCI n (%)

11 (23)

13 (32)

23 (38)

ns

Presence of baseline WM abnormalities, n %

10 (21)

14 (34)

24 (39)

ns

Baseline LVEF, %

57 ± 8

54 ± 9

52 ± 10

ns

Abnormal WM, n (%)

8 (17)

15 (37)

52 (85)

p < 0.001

Abnormal myocardial perfusion n (%)

15 (31)

40 (98)

58 (95)

ns

Peak RPP mean(± 1 SD)

15124 (3140)

15416(3684)

14615(2705)

ns

  1. Risk factors considered were: hypertension, diabetes, current smoking, hypercholesterolemia, familiar history of premature coronary artery disease (CAD) and obesity. The "No CAD" group includes patients with < 50% CAD. P value refers to difference between the 2 disease groups "CAD 50%-70%" and "CAD > 70%". QCA = quantitative coronary angiography, PCI = percutaneous coronary intervention, LVEF = left ventricular ejection fraction, WM = wall motion, MPI = myocardial perfusion imaging, RPP = rate-pressure product