Table 3 Relative risk of emergency department revisits within 3 days after discharge among the patients with STEMI.

24-h PCI model

 No (ref.)

1

 Yes

0.73

0.48

–

1.10

0.133

Gender

 Female (ref.)

1

 Male

1.05

0.77

–

1.45

0.752

Age (years)

 < 45 (ref.)

1

 45–54

1.30

0.68

–

2.46

0.427

 55–64

1.33

0.72

–

2.47

0.360

 65–74

1.36

0.72

–

2.56

0.351

 75–84

1.71

0.90

–

3.25

0.101

≧ 85

2.13

1.08

–

4.17

0.028

CCI score

 0 (ref.)

1

 1

1.30

0.91

–

1.87

0.153

 2

1.50

0.98

–

2.32

0.065

 3

1.27

0.77

–

2.08

0.347

≧ 4

1.30

0.83

–

2.04

0.247

Monthly salary

≦ 17,280 (ref.)

1

 17,281–22,080

0.69

0.45

–

1.06

0.093

 22,081–36,300

0.90

0.65

–

1.25

0.534

≧ 36,301

1.11

0.75

–

1.62

0.610

Urbanization level

 Level 1 (ref.)

1

 Level 2

1.16

0.76

–

1.77

0.490

 Level 3

1.33

0.84

–

2.11

0.222

 Level 4

1.36

0.86

–

2.16

0.193

 Level 5–7

1.91

1.20

–

3.06

0.007

Other catastrophic illness

 No (ref.)

1

 Yes

1.43

0.93

–

2.20

0.101

Triage level

 Level 1 (ref.)

1

 Level 2

1.12

0.81

–

1.54

0.490

 Level 3

1.14

0.78

–

1.67

0.510

 Level 4 and 5

1.19

0.47

–

3.02

0.720

PCI

 No (ref.)

1

 Yes

0.33

0.24

–

0.43

< 0.001

Hospital level

 Medical centers (ref.)

1

 Regional hospitals

1.94

1.32

–

2.87

< 0.001

 District hospitals

3.09

1.96

–

4.87

< 0.001

Hospital ownership

 Public (ref.)

1

 Private

0.82

0.62

–

1.08

0.149