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Table 3 Subacute and chronic phase univariable Cox Regression Analysis of MACE

From: Fractal analysis of left ventricular trabeculae in post-STEMI: from acute to chronic phase

 

Subacute phase

Chronic phase

 

Hazard Ratio (95% CI)

p value

Hazard Ratio (95% CI)

p value

Baseline characteristics

 Age

1 (0.97, 1.03)

0.82

1 (0.97, 1.03)

0.93

 Male sex

0.77 (0.3, 1.99)

0.59

0.76 (0.3, 1.98)

0.58

 Body mass index

0.9 (0.79, 1.03)

0.12

0.93 (0.82, 1.05)

0.24

 Hypertension

1.27 (0.65, 2.5)

0.49

1.27 (0.65, 2.5)

0.49

 Dyslipidemia

1.08 (0.47, 2.47)

0.87

1.08 (0.47, 2.48)

0.86

 Diabetes mellitus

1.33 (0.68, 2.62)

0.41

1.33 (0.68, 2.62)

0.41

 Anterior infarction

1.42 (0.62, 3.25)

0.40

1.41 (0.62, 3.23)

0.41

 Pain-to-balloon time (h)

1 (1, 1.01)

0.11

1 (1, 1.01)

0.11

 NYHA class > 3

1.57 (1.38, 4.46)

 < 0.001

19.57 (4.38, 87.46)

 < 0.001

 Pre-pPCI TIMI flow < 3

1.81 (0.75, 4.37)

0.19

1.81 (0.75, 4.38)

0.19

 Post-pPCI TIMI flow < 3

3.89 (1.61, 9.42)

0.003

4.15 (1.71, 10.1)

0.002

CMR parameters

 Heart rate

1.03 (1.01, 1.06)

0.02

1.02 (1, 1.05)

0.08

 LVEF

0.96 (0.94, 0.99)

0.005

0.98 (0.97, 1)

0.009

 LVMi

1.02 (1, 1.04)

0.049

1.03 (1, 1.05)

0.03

 LVEDVi

1.03 (1.01, 1.04)

 < 0.001

1.03 (1.02, 1.04)

 < 0.001

 LVESVi

1.03 (1.02, 1.04)

 < 0.001

1.03 (1.02, 1.04)

 < 0.001

 LVSVi

1 (0.97, 1.04)

0.82

0.99 (0.96, 1.02)

0.611

 Infarct size, per 10%

2.21 (1.65, 2.97)

 < 0.001

2.14 (1.6, 2.87)

 < 0.001

 Infarct transmural extent, per 10%

1.19 (0.97, 1.45)

0.10

1.16 (0.96, 1.4)

0.13

 LV thrombus

0.44 (0.06, 3.21)

0.42

0.82 (0.11, 5.97)

0.84

 LV aneurysm

1.27 (0.58, 2.79)

0.55

1.38 (0.65, 2.94)

0.40

 MVO/IMH

1.61 (0.84, 3.1)

0.15

0.93 (0.46, 1.88)

0.83

 Papillary infarction

0.56 (0.20, 1.57)

0.27

0.56 (0.20, 1.58)

0.27

FD measures, per 1%

 Global FD

0.89 (0.82, 0.96)

0.005

0.93 (0.86, 1)

0.04

 Infarct area FD

0.95 (0.9, 1)

0.07

0.95 (0.9, 1)

0.04

 Remote area FD

0.95 (0.9, 1)

0.04

0.96 (0.91, 1.01)

0.13

 ΔGlobal FD

0.85 (0.79, 0.91)

 < 0.001

0.92 (0.86, 0.98)

0.007

 ΔInfarct area FD

0.95 (0.88, 1.03)

0.23

0.96 (0.9, 1.02)

0.17

 ΔRemote area FD

0.9 (0.84, 0.98)

0.01

0.96 (0.89, 1.02)

0.21

  1. TIMI Thrombolysis in myocardial infarction, LVEF Left ventricular ejection fraction, LVEDVi Left ventricular end-diastolic volume index, LVESVi Left ventricular end-systolic volume index, LVMi Left ventricular mass index, LVSVi Left ventricular stroke volume index, MVO Microvascular obstruction, IMH Intramyocardial hemorrhage, LVT Left ventricular thrombus, FD Fractal dimension