Table 3 Comparison of characteristics, medications between hospitalization the event and non-the event

Gender

 Male, n(%)

33(84.62)

218(76.49)

1.297

0.255

 Female, n(%)

6(15.38)

67(23.51)

 Age, n(%)

69(20)

66(17)

−0.382

0.702

Chest pain period(h)

6(5.5)

4(4)

−2.070

0.038^a

Pain-to-balloon time(h)

7.1(6.5)

5.35(4.43)

−2.283

0.022^a

Door-to-balloon time(h)

1(0.58)

1(0.61)

−0.785

0.433

hospitalization day(d)

6(2)

6(2)

−0.148

0.882

History

Hypertension,n(%)

18(46.15)

117(41.05)

0.367

0.544

Diabetes mellitus,n(%)

9(23.08)

56(19.65)

0.251

0.616

Stroke or TIA,n(%)

6(15.38)

28(9.82)

0.615

0.433

Previous MI/PCI/CABG,n(%)

3(7.69)

16(5.61)

0.024

0.877

Heart Failure,n(%)

3(7.69)

7(2.46)

1.638

0.201

Coronary heart disease,n(%)

6(15.38)

29(10.18)

0.501

0.479

Current smoking status,n(%)

11(28.21)

100(35.09)

0.722

0.396

Current drinking status,n(%)

8(20.51)

52(18.25)

0.117

0.732

Admission medication

Aspirin,n(%)

39(100.00)

285(100.00)

–

–

Clopidogrel or Tigrigrel,n(%)

39(100.00)

285(100.00)

–

–

ACEIs or ARBs,n(%)

19(48.72)

164(57.54)

1.087

0.297

CCB,n(%)

16(41.03)

135(47.37)

0.555

0.456

Β-blocker,n(%)

34(87.18)

254(89.12)

0.008

0.928

Statin,n(%)

39(100.00)

285(100.00)

–

Diuretics,n(%)

18(46.15)

95(33.33)

2.483

0.115

SBP (mmHg)

119(30)

123(29)

−1.840

0.066

DBP (mmHg)

72(14)

78(18)

−1.544

0.123

Heart-rate (beats-per-minute)

83.28 ± 14.84

80.70 ± 14.10

0.018

0.287

Killip class,n(%)

 1–2

30(76.92)

263(92.28)

7.661

0.006^a

 3–4

9(23.08)

22(7.72)

Target Vessel,n(%)

 LM

3(7.69)

6(2.11)

2.166

0.141

 LAD

25(64.10)

166(58.25)

0.486

0.486

 LCX

6(15.38)

31(10.88)

0.315

0.574

 RCA

7(17.95)

88(30.88)

2.767

0.096

Simultaneous treatment of vascular situations,n(%)

 1

37(94.87)

279(97.89)

0.349

0.555

  > 1

2(5.13)

6(2.11)

Vessel-disease (stenosis > 50%)

 1 vessel,n(%)

11(28.21)

79(27.72)

0.004

0.949

 2 vessels,n(%)

15(38.46)

66(23.16)

3.508

0.061

 3 vessels,n(%)

13(33.33)

140(49.12)

3.432

0.064

PCI type,n(%)

Only PTCA

5(12.82)

30(10.53)

0.025

0.875

PTCA and Stent

34(87.18)

255(89.47)

Stent type,n(%)

 Drug eluting stent

10(25.64)

119(41.75)

3.717

0.054

 Bare metal stent

29(74.36)

166(58.25)

Number of stents inserted,n(%)

1 piece

32(82.05)

261(91.58)

2.582

0.108

≥2 piece

7(17.95)

24(8.42)

Stent length (mm)

28(6)

23(11)

−1.995

0.046^a

Stent Diameter (mm)

3(0.25)

3(0.5)

−0.531

0.595

IVUS Assist,n(%)

Yes

3(7.69)

10(3.51)

0.662

0.416

No

36(92.31)

275(96.49)

TIMI after PPCI n(%)

3

37(94.87)

279(97.89)

0.349

0.555

<3

2(5.13)

6(2.11)

site of AMI n(%)

anterior

25(64.10)

145(50.88)

6.695

0.112

 antero-septal

1(2.56)

9(3.16)

 high side wall

2(5.13)

3(1.05)

 Inferior wall

11(28.21)

125(43.86)

 anterolateral

0(0.00)

3(1.05)