Table 1 The baseline characteristics and the results of the t-test

Baseline characteristics

 Cases

40(17.3%)

191(82.6%)

 Gender

40

191

0.676

  Male

30

137

  Female

10

54

 Age

62.4 (± 2.48)

62.8 (± 4.32)

0.358

 BMI

28.92 (± 2.09)

28.75 (± 2.38)

0.684

 Current smoking

20 (± 0.50)

104 (± 0.49)

0.610

 Dyslipidemia

30 (± 0.43)

155 (± 0.39)

0.378

 Diabetes mellitus

18 (± 0.50)

58 (± 0.46)

0.096

 Heart failure history

7 (± 0.38)

26 (± 0.34)

0.525

 Renal failure history

4 (± 0.30)

23 (± 0.32)

0.716

 Previous myocardial infarction

5 (± 0.33)

16 (± 0.27)

0.412

 Killip class(arrival)

0.781

  I

27

115

  II

6

59

  III

5

12

  IV

2

5

Nursing efficiency

 D2FMC (minutes)

2.92 (± 0.72)

2.8 (± 0.76)

0.589

 FMC2FE (minutes)

2.12 (± 0.56)

2.14 (± 0.61)

0.876

 FMC2BS (minutes)

9.92 (± 2.60)

7.84 (± 2.36)

0.000**

 BS2CBR (minutes)

13. (± 0.64)

12.91 (± 0.77)

0.004*

 FMC2FAD (minutes)

8.10 (± 0.95)

6.95 (± 1.14)

0.000**

 D2W (minutes)

70.6 (± 2.02)

69.21 (± 2.34)

0.001*

Outcomes

 Occurrence of major adverse cardiovascular events

6

29

0.977

 Highest troponin values within 72 h of hospitalization(TNT, ng/L)

2542 (± 2206.21)

2252.4 (± 2424.93)

0.486

 Hospitalization (days)

13.8 (± 2.13)

13.39 (± 2.45)

0.337