Table 1 Baseline characteristics of the study participants

Clinic and demographic characteristics

 Age (years)

62.34 ± 12.46

63.95 ± 12.38

 Male, n (%)

457 (83.5%)

117 (80.1%)

 Smoking, n (%)

369 (67.5%)

86 (58.9%)

 Heart failure (Killip II–IV, class), n (%)

136 (24.9%)

54 (37.0%)

 Hypertension, n (%)

306 (55.9%)

103 (70.5%)

 Diabetes mellitus, n (%)

168 (30.7%)

73 (50.0%)

 Stroke or TIA, n (%)

53 (9.7%)

15 (10.3%)

 Family history, n (%)

22 (4.0%)

6 (4.1%)

 Peripheral vascular history, n (%)

11 (2.0%)

14 (9.6%)

 Atrial fibrillation, n (%)

34 (6.2%)

9 (6.2%)

 Hyperlipidaemia, n (%)

329 (60.1%)

77 (52.7%)

 Heart rate (bpm)

78.00 ± 15.11

78.46 ± 15.70

 SBP, mmHg

125.76 ± 22.37

130.47 ± 24.82

 DBP, mmHg

78.04 ± 13.72

79.86 ± 16.03

 LVEF (%)

50.66 ± 9.56

49.71 ± 9.51

 Anterior myocardial infarction, n (%)

310 (56.7%)

81 (55.5%)

 Time to hospital > 4 h

382 (69.8%)

100 (68.5%)

Laboratory parameters

 TC (mmol/L)

4.55 ± 1.07

4.63 ± 1.06

 TG (mmol/L)

1.44 (1.05–2.08)

1.39 (1.02–2.05)

 LDL-C (mmol/L)

3.03 (2.41–3.69)

3.08 (2.51–3.72)

 HDL-C (mmol/L)

0.96 (0.82–1.15)

1.05 (0.90–1.24)

 BUN (mmol/L)

4.90 (4.00–6.30)

5.75 (4.43–7.48)

 sCr (mg/dL)

0.83 (0.74–0.97)

0.97 (0.81–1.19)

 hs‐CRP (mg/L)

8.13 (3.19–22.60)

12.10 (4.57–32.53)

 CK-MB (U/L)

88.85 (28.53–211.38)

82.85 (30.35–201.325)

 UA (μmol/L)

367.19 ± 108.31

374.88 ± 111.34

 HCY (μmol/L)

9.19 (7.37–11.24)

9.89 (7.72–12.09)

 TB (mg/dL)

0.72 (0.54–0.93)

0.91 (0.59–1.19)

 Nt-proBNP (pg/ml)

629.50 (181.75–1542.75)

807.50 (181.25–2104.75)

 MELD-XI score

9.44 (9.44–10.29)

10.67 (9.65–12.59)

Preprocedural characteristics

 Multiple stenosis vessels, n (%)

345 (63.1%)

96 (65.8%)

 LMCA, n (%)

36 (6.6%)

7 (4.8%)