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Table 1 Baseline demographic characteristics

From: Physiological benefits evaluated by quantitative flow ratio in patients with reduced left ventricular ejection fraction who underwent percutaneous coronary intervention

 

Reduced LVEF group

(n = 48)

Normal LVEF group

(n = 253)

P value

Clinical characteristics

   

Age, years

63.69 ± 8.10

63.03 ± 9.60

0.676

Male, n (%)

42 (87.5%)

197 (77.9%)

0.130

Hypertension, n (%)

31 (64.6%)

171 (67.6%)

0.684

Diabetes, n (%)

24 (50.0%)

77 (30.4%)

0.008

Prediabetes, n (%)

0 (0.00%)

7 (2.8%)

0.520

Normoglycaemic, n (%)

24 (50.0%)

169 (66.8%)

0.026

Renal insufficiency, n (%)

3 (6.3%)

9 (3.6%)

0.637

Current or previous smoker, n (%)

32 (66.7%)

139 (54.9%)

0.133

Previous myocardial infarction, n (%)

9 (18.8%)

27 (10.7%)

0.114

Previous PCI, n (%)

12 (25.0%)

51 (20.2%)

0.450

Disease types

   

Stable angina, n (%)

2 (4.2%)

31 (12.3%)

0.100

Unstable angina, n (%)

14 (29.2%)

172 (68.0%)

 < 0.001

Post-NSTEMI (≥ 72 h), n (%)

15 (31.3%)

25 (9.9%)

 < 0.001

Post-STEMI (≥ 72 h), n (%)

17 (35.4%)

25 (9.9%)

 < 0.001

Laboratory indexes

   

Glucose level at admission, mmol/L

6.70 (3.14)

5.54 (1.64)

0.001

Blood LDL level at admission, mmol/L

2.92 ± 0.91

2.74 ± 0.93

0.169

NT-proBNP, pg/mL

819.50 (1412)

109.00 (220)

 < 0.001

Troponin I, ug/L

5.36 ± 10.81

1.86 ± 7.93

 < 0.001

CRP, mg/L

5.23 (8.94)

1.69 (4.51)

 < 0.001

Interrogated vessel

   

Left anterior descending branch, n (%)

26 (54.2%)

146 (57.7%)

0.649

Circumflex branch, n (%)

7 (14.6%)

49 (19.4%)

0.435

Right coronary artery, n (%)

15 (31.3%)

58 (22.9%)

0.217

  1. Values are the mean ± standard deviation, median (interquartile range), or n (%)
  2. LVEF, left ventricular ejection fraction; PCI, percutaneous coronary intervention; NSTEMI, non-ST segment elevation myocardial infarction; STEMI, ST segment elevation myocardial infarction. LDL, low density lipoprotein; NT-Pro BNP, N-terminal pro brain natriuretic peptide; CRP, C-reactive protein