Table 1 Patient characteristics

Age (year)

42.3 ±15.8

36.5 ± 15.2

44.9 ± 15.4

−4.692

−12.064

<  0.001*

  ≤ 20

18 (5.8 )

9 (9.3)

ik9 (4.2)

0.425

0.163

1.107

0.072

 21–40

131 (41.9)

55 (56.7 )

76 (35.2)

0.415

0.254

0.676

<  0.001

 41–60

116 (37.1)

23 (23.7)

93 (43.1)

2.433

1.418

4.174

0.001

  ≥ 61

48 (15.3)

10 (10.3)

38 (17.6)

1.857

0.884

3.902

0.098

Male

226 (72.2)

70 (72.2

156 (72.2)

1.003

0.588

1.712

0.992

 Department of Cardiology

89 (28.4)

26 (26.8)

63 (29.2)

1.124

0.657

1.923

0.668

 Department of Cardiothoracic Surgery

80 (25.6)

19 (19.6)

61 (28.2)

1.616

0.902

2.892

0.105

 Department of Infectious Disease

47 (15.0)

10 (10.3)

37 (17.1)

1.798

0.855

3.784

0.118

 Department of Respiratory

24 (7.7)

14 (14.4)

10 (4.6)

0.288

0.123

0.674

0.003

 Department of Nephrology

16 (5.1)

8 (8.2)

8 (3.7)

0.428

0.156

1.176

0.158

 Health care-related

21 (6.7)

3 (3.1)

18 (8.3)

2.848

0.819

9.909

0.087

 Basic heart disease

142 (45.4)

47 (48.5)

95 (44.0)

0.835

0.517

1.350

0.462

 Congenital heart disease

52 (16.6)

20 (20.6)

32 (14.8)

0.670

0.361

1.243

0.202

 Rheumatic heart disease

60 (19.2)

22 (22.7)

38 (17.6)

0.728

0.403

1.313

0.290

 Degenerative heart valve disease

24 (7.7)

4 (4.1)

20 (9.3)

2.372

0.789

7.138

0.114

 Intravenous drug users

51 (16.3)

25 (25.8)

26 (12.0)

0.394

0.214

0.727

0.002

 Prosthetic valve replacement

11 (3.5)

3 (3.1)

8 (3.7)

1.205

0.313

4.644

0.952

 Pacemaker

3 (1.0)

1 (1.0)

2 (0.9)

1.000

0.080

10.014

0.897†

 Previous IE history

8 (2.6)

2 (2.1)

6 (2.8)

1.357

0.239

6.848

0.987

 Recent skin infection

10 (3.2)

3 (3.1)

7 (3.2)

1.049

0.266

4.147

0.781

 Diabetes

28 (8.9)

5 (5.2)

23 (10.6)

2.193

0.808

5.951

0.115