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Table 3 Causative pathogens and acquisition of infective endocarditis

From: Infective endocarditis at a tertiary-care hospital in China

Causative pathogen

Total (n = 381)

Community acquired (n = 333)

Non-nosocomial I (n = 25)

Nosocomial (n = 23)

P

Gram-positive bacteria

 Viridans group streptococci

143 (37.5%)

134 (40.2%)

8 (32%)

1 (4.3%)

0.002

Staphylococcus aureus

30 (7.9%)

21 (6.3%)

5 (20%)

4 (17.3%)

0.011

  MRSA

10 (2.6%)

8 (2.4%)

1 (4%)

1 (4.3%)

0.772

  MSSA

20 (5.2%)

13 (3.9%)

4 (16%)

3 (13.0%)

0.007

 CNS

12 (3.1%)

8 (2.4%)

2 (8%)

2 (8.7%)

0.088

Enterococcus faecalis

11 (2.9%)

8 (2.4%)

3 (12%)

0 (0%)

0.015

Streptococcus bovis

6 (1.6%)

6 (1.8%)

0 (0%)

0 (0%)

0.644

 Other

16 (4.2%)

14 (4.2%)

2 (8%)

0 (0%)

0.386

Gram-negative rods

21 (5.5%)

16 (4.8%)

0 (0%)

5 (21.7%)

0.001

HAECK

12 (3.1%)

11 (3.3%)

0 (0%)

1 (4.3%)

0.623

Rickettsia

4 (1.0%)

4 (1.2%)

0 (0%)

0 (0%)

0.747

TB

1 (0.26%)

1 (0.3%)

0 (0%)

0 (0%)

0.930

Fungi

6 (1.6%)

3 (0.9%)

1 (4%)

2 (8.7%)

0.009

Others

12 (3.1%)

12 (3.6%)

0 (0%)

0 (0%)

0.409

Polymicrobial

10 (2.6%)

7 (2.1%)

2 (8%)

1 (4.3%)

0.178

Culture negative

97 (25.5%)

88 (26.4%)

2 (8%)

7 (30.4%)

0.106