Table 1 Baseline characteristics according to the AI-probability index.

From: AI-enabled ECG index for predicting left ventricular dysfunction in patients with ST-segment elevation myocardial infarction

 

AI-probability index

P value

Low tertile (n = 212)

Middle tertile (n = 212)

High tertile (n = 213)

Age, years

64.9 ± 12.5

64.1 ± 12.6

65.2 ± 13.9

0.658

Female, n (%)

41 (19.8)

44 (20.8)

42 (19.7)

0.931

BMI, kg/cm2

24.9 ± 3.5

24.2 ± 3.6

24.3 ± 3.1

0.139

Hypertension, n (%)

117 (55.2)

120 (56.6)

114 (53.5)

0.815

Diabetes, n (%)

66 (31.1)

57 (26.9)

75 (35.2)

0.179

ESRD, n (%)

3 (1.4)

3 (1.4)

3 (1.4)

0.999

Prior PCI, n (%)

9 (4.2)

7 (3.3)

8 (3.8)

0.878

Prior CVA, n (%)

15 (7.1)

16 (7.5)

17 (8.0)

0.939

Systolic BP, mmHg

131.1 ± 38.1

132.3 ± 35.2

133.4 ± 32.0

0.803

Diastolic BP, mmHg

77.2 ± 25.1

78.8 ± 24.0

78.8 ± 22.0

0.716

Pulse rate, bpm

72.4 ± 22.8

77.4 ± 20.7

81.4 ± 21.9

 < 0.001

Killip Class, n (%)

   

0.041

 I

173 (81.6)

174 (82.1)

156 (73.2)

 

 II

18 (8.5)

17 (8.0)

26 (12.2)

 

 III

11 (5.2)

10 (4.7)

13 (6.1)

 

 IV

10 (4.7)

11 (5.2)

18 (8.5)

 

Disease severity, n (%)

   

0.680

 1 VD

96 (45.3)

105 (49.5)

94 (44.1)

 

 2 VD

68 (32.1)

67 (31.6)

67 (31.5)

 

 3 VD

48 (22.6)

40 (18.9)

52 (24.4)

 

Infarct-related artery, n (%)

   

 < 0.001

 LM

10 (4.7)

6 (2.8)

1 (0.5)

 

 LAD

82 (38.7)

135 (63.7)

134 (62.9)

 

 LCx

32 (15.1)

16 (7.5)

9 (4.2)

 

 RCA

88 (41.5)

55 (25.9)

69 (32.4)

 

Peak troponin I, ng/ml

51.5 ± 43.8

74.9 ± 46.5

86.2 ± 42.5

 < 0.001

NT-proBNP, pg/dl

1682.2 ± 5631.8

1908.7 ± 5369.1

2543.5 ± 5668.7

0.259

Hemglobin, g/dl

14.1 ± 2.1

14.2 ± 2.0

14.1 ± 2.2

0.765

Platelet, 103/μl

236.4 ± 66.8

238.0 ± 70.1

241.9 ± 81.1

0.728

eGFR, ml/min/1.73m2

69.6 ± 25.1

71.8 ± 24.3

69.0 ± 24.9

0.457

Cholesterol, mg/dl

151.9 ± 46.1

155.4 ± 39.8

163.0 ± 48.6

0.034

Triglyceride, mg/dl

166.0 ± 150.6

168.1 ± 144.5

158.2 ± 126.8

0.751

HDL, mg/dl

45.2 ± 11.2

45.0 ± 11.7

45.8 ± 10.8

0.783

LDL, mg/dl

108.9 ± 37.7

110.5 ± 37.3

120.0 ± 39.2

0.005

CRP, mg/dl

0.8 ± 2.5

0.9 ± 2.6

1.4 ± 3.0

0.066

  1. AI, artificial intelligence; BMI, body mass index; BP, blood pressure; CRP, C-reactive protein; CVA, cerebrovascular accident; eGFR, estimated glomerular filtration rate; ESRD, end-stage renal disease; HDL, high density lipoprotein; LAD, left anterior descending artery ; LCx, left circumflex artery; LDL, low density lipoprotein; LM, left main; NT-proBNP, N-terminal pro b-type natriuretic peptide; PCI, percutaneous coronary intervention; RCA, right coronary artery; VD, vessel disease.
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