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Table 3 Results of screening tests stratified by the presence or absence of coronary artery disease

From: Use of imaging and clinical data to screen for cardiovascular disease in asymptomatic diabetics

Screening tests

All subjects (n = 98)

Subjects with coronary artery disease (n = 43)

Subjects without coronary artery disease (n = 55)

p Value

Coronary artery calcium

 0

60 (61.0 %)

5 (11.6 %)

55 (100 %)

<0.01

 ≥ 1 (Agatston score)

38 (38.8 %)

38 (88.4 %)

0 (0 %)

Carotid artery ultrasound

 Maximum intima medial thickness (IMT), mm

0.75 ± 0.16

0.80 ± 0.20

0.70 ± 0.11

<0.01

 IMT ≥ 1.0 mm (#, %)

11 (11.2 %)

11 (25.6 %)

0

<0.01

 Carotid plaque (#, %)

    

 No carotid plaque

55 (56.1 %)

18 (41.9 %)

37 (67.3 %)

0.01

 Carotid plaque

43 (43.9 %)

25 (58.4 %)

18 (32.7 %)

 Carotid plaque or IMT ≥ 1.0 mm

44 (44.9 %)

26 (60.5 %)

18 (32.7 %)

<0.01

Exercise treadmill test

 ECG test results (#, %)

  Negative

69 (70.4 %)

26 (60.5 %)

43 (78.2 %)

0.04

  Positive

8 (8.2 %)

7 (16.3 %)

1 (1.8 %)

  Negative with <85 % MPHR

20 (20.4 %)

10 (23.3 %)

10 (18.2 %)

  Inconclusive due to LBBB

1 (1.0 %)

0

1 (1.8 %)

 Specific test outcomes

  METS

8.5 ± 2.1

8.2 ± 1.8

8.7 ± 2.4

0.19

  Duke treadmill score

8.3 ± 4.8

7.1 ± 5.0

9.2 ± 4.4

0.03

  1. p Values calculated using two-tailed t test, Chi squared test, and Kruskal–Wallis test
  2. MPHR maximal predicted heart rate