Table 1 Baseline characteristics of study population.

From: Predicting long-term time to cardiovascular incidents using myocardial perfusion imaging and deep convolutional neural networks

 

Training and cross-validation

Testing

p

N = 1540

N = 388

Age

69.12 ± 12.43

68.45 ± 12.65

0.343

Male, n (%)

1117 (72.53)

295 (76.03)

0.164

BMI, Kg/m2

25.70 ± 4.07

25.93 ± 3.31

0.254

Hypertension, n (%)

1022 (66.36)

248 (63.92)

0.364

Diabetes, n (%)

558 (36.23)

150 (38.66)

0.376

Systolic BP, mmHg

131.84 ± 20.29

132.08 ± 20.34

0.838

Diastolic BP, mmHg

74.04 ± 11.49

73.97 ± 12.52

0.926

LVEF, %

54.24 ± 12.03

53.84 ± 10.65

0.721

Glucose, mg/dL

121.28 ± 41.65

122.83 ± 41.92

0.569

Cholesterol, mg/dL

173.83 ± 42.01

174.16 ± 40.29

0.892

LDL-C, mg/dL

106.73 ± 34.63

108.11 ± 33.71

0.488

HDL-C, mg/dL

43.32 ± 12.36

43.13 ± 11.02

0.770

Triglyceride, mg/dL

136.74 ± 83.24

137.03 ± 88.30

0.953

TC/HDL-C ratio

4.28 ± 1.52

4.26 ± 1.43

0.809

Creatinine

1.54 ± 1.68

1.52 ± 1.72

0.890

CAD severity

 SVD, n (%)

106 (27.32)

438 (28.44)

0.701

 DVD, n (%)

126 (32.47)

507 (32.92)

 TVD, n (%)

155 (39.95)

594 (38.57)

Total stents, n

1.85 ± 1.08

1.78 ± 1.01

0.295

Total stents size, mm

3.06 ± 0.44

3.05 ± 0.40

0.670

Total stents length, mm

23.36 ± 5.99

23.10 ± 6.27

0.494

Medication

 ACE inhibitor/ARB, n (%)

842 (54.68)

210 (54.12)

0.845

 β-blocker, n(%)

787 (51.10)

199 (51.29)

0.948

 Calcium channel blocker, n (%)

586 (38.05)

163 (42.01)

0.153

  Diuretics, n (%)

194 (12.60)

54 (13.92)

0.488

  Statin, n (%)

897 (58.25)

219 (56.44)

0.520

  1. Data are mean ± SD, BMI indicates body mass index.
  2. BP, blood pressure, LDL-C low density lipoprotein-cholesterol, HDL high density lipoprotein-cholesterol, CAD coronary artery disease, SVD single vessel disease, DVD double vessel disease, TVD triple vessel disease, ACE angiotensin converting enzyme, ARB angiotensinogen receptor blocker.