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Table 1 Causative microorganisms in CAP patients

From: Inflammatory parameters predict etiologic patterns but do not allow for individual prediction of etiology in patients with CAP – Results from the German competence network CAPNETZ

Etiology

Total

Inpatients

Outpatients

Typical bacterial pathogens

185 (13.8%)

139 (10.4%)

46 (3.4.%)

S. pneumoniae

122 (9.1%)

95 (7.1%)

27 (2.0%)

H. influenzae

13 (1.0%)

8 (0.6%)

5(0.4%)

Haemophilus spp

2 (0.1%)

1 (0.1%)

1 (0.1%)

E. coli

9 (0.7%)

7 (0.5%)

2 (0.1%)

S. aureus

12 (0.9%)

8 (0.6%)

4 (0.3%)

Moraxella catarrhalis

5 (0.4%)

1 (0.1%)

4 (0.3%)

Enterobacter spp.

5 (0.4%)

5 (0.4%)

0

Proteus mirabilis

2 (0.1%)

2 (0.1%)

0

Pseudomonas spp.

1 (0.1%)

1 (0.1%)

0

Pseudomonas aeruginosa

1 (0.1%)

1 (0.1%)

0

Citrobacter spp

2 (0.1%)

0

2 (0.1%)

Enterococcus faecium

1 (0.1%)

1 (0.1%)

0

Klebsiella pneumonite

2 (0.1%)

2 (0.1%)

0

Klebsiella oxytoca

1 (0.1%)

1 (0.1%)

0

Streptococcus agalactiae

4 (0.3%)

3 (0.2%)

1 (0.1%)

Streptococcus pyogenes

1 (0.1%)

1 (0.1%)

0

Streptococcus acidominimus

1 (0.1%)

1 (0.1%)

0

Prevotella spp.

1 (0.1%)

1 (0.1%)

0

Atypical pathogens

190 (14.2%)

115 (8.6%)

75 (6.6%)

M. pneumoniae

140 (10.5%)

80 (6.0%)

60 (4.5%)

Legionella spp

48 (3.6%)

34 (2.5%)

14 (1.0%)

Chl. pneumoniae

2 (0.1%)

1 (0.1%)

1 (0.1%)

Viruses

39 (2.9%)

25 (1.9%)

14 (1.0%)

Adenovirus

2 (2.2%)

2 (0.1%)

14 (1.0)

Influenza A

33 (2.5%)

19 (1.4%)

0

RS Virus

3 (0.2%)

3 (0.2%)

0

Enterovirus

1 (0.1%)

1 (0.1%)

 

Mixed

58 (4.3%)

42 (3.1%)

16 (1.2%)

Unknown

865 (64.7%)

577 (43.2%)

288 (21.5%)

Total

589 (100%)

384 (100%)

205 (100%)

  1. Data are presented as number of cases (percentages of total number)