Table 1 Baseline characteristics

Age (years)

66.4 ± 12.6

66.3 ± 13.0

0.84

Male

2474 (69.5%)

1768 (68.2%)

0.31

Diabetes

872 (24.5%)

678 (26.2%)

0.14

Hypertension

2357 (66.2%)

1732 (66.8%)

0.59

Dyslipidemia

2636 (74.0%)

1999 (77.1%)

0.005

Smoker

675 (19.0%)

660 (25.5%)

<0.0001

Previous MI

959 (26.9%)

677 (26.2%)

0.50

Previous PCI

880 (24.7%)

484 (18.7%)

<0.0001

Previous CABG

413 (11.6%)

227 (8.8%)

0.0003

Previous heart failure

252 (7.1%)

238 (9.2%)

0.003

Chronic renal failure

115 (3.2%)

74 (2.9%)

0.40

Acute renal failure

10 (0.3%)

10 (0.4%)

0.48

Dialysis

76 (2.1%)

29 (1.1%)

0.002

Cerebrovascular disease

292 (8.2%)

196 (7.6%)

0.36

Peripheral vascular disease

172 (4.8%)

137 (5.2%)

0.46

Mean heart rate (beats/min)

75.5 (19.3)

76.5 (20.2)

0.05

Mean systolic BP (mmHg)

138.8 (25.7)

142.1 (27.4)

<0.0001

Mean diastolic BP (mmHg)

77.8 (16.2)

80.2 (17.4)

<0.0001

Systolic BP < 100

136 (3.9%)

106 (4.2%)

0.63

Presence of shock

32 (0.9%)

18 (0.7%)

0.38

ECG dynamic changes

419 (11.8%)

437 (16.9%)

<0.0001

Presentation diagnosis

<0.0001

Unstable angina

2286 (42.5)

1334 (33.7)

NSTEMI

1276 (23.7)

1259 (31.7)

Non-invasive tests^† performed within 3 months prior to admission

471 (13.2%)

288 (11.1%)

0.013

Catheterization not received

1730 (48.6%)

1834 (32.2%)

<0.0001

Catheterization received

11832 (51.4%)

1759 (67.8%)

Within 24 hours of admission

594 (16.7%)

255 (9.8%)

<0.0001

Within 48 hours of admission

995 (54.3%)

571 (32.5%)

<0.0001

Within 72 hours of admission

1260 (68.8%)

844 (48%)

<0.0001