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Table 1 Distribution of the main infectious agents isolated in 268 ascitic fluid samples during the period 20102011

From: Evolving epidemiology and antimicrobial resistance in spontaneous bacterial peritonitis: a two-year observational study

 

Total (n = 268) (n,%)

Ascitic neutrophil count (median, IQR)

Non-nosocomial episodes (n = 109) (n,%)

Nosocomial episodes (n = 159) (n,%)

p1

SBP (n = 57) (n,%)

Bacterascites (n = 140) (n,%)

p2

With FQ prophylaxis (n = 27) (n,%)

Without FQ prophylaxis (n = 241) (n,%)

p3

Streptococcus (other than S. pneumoniae)

33 (12.3%)

70 (21–150)

17 (15.6%)

16 (10.1%)

0.18

5 (8.8%)

18 (12.9%)

0.42

2 (7.4%)

31 (31.9%)

0.41

Streptococcus pneumoniae

4 (1.5%)

955 (200–1710)

4 (3.7%)

0 (0.0%)

0.01

1 (1.8%)

1 (0.7%)

0.51

0 (0.0%)

4 (1.7%)

0.50

Enterococcus sp.

65 (24 .3%)

75 (25–565)

15 (13.8%)

50 (31.4%)

0.0009

13 (22.8%)

31 (22.1%)

0.92

13 (48.1%)

52 (21.6%)

0.02

Staphylococcus aureus

7 (2.6%)

392 (18–815)

6 (5.5%)

1 (0.6%)

0.01

0 (0.0%)

0 (0.0%)

-

1 (3.7%)

6 (2.5%)

0.71

Coagulase negative Staphylococcus

73 (27.2%)

63 (8–155,5)

25 (22.9%)

48 (30.2%)

0.19

13 (22.8%)

47 (33.6%)

0.14

4 (14.8%)

69 (28.6%)

0.13

Gram positive cocci

174 (64.9%)

77 (10–310)

67 (61.5%)

107 (67.3%)

0.33

32 (56.1%)

91 (65.0%)

0.24

20 (74.7%)

154 (63.9%)

0.29

Escherichia coli

48 (17.9%)

129 (86–830)

20 (18.3%)

28 (17.6%)

0.88

15 (26.3%)

21 (15.0%)

0.06

3 (11.1%)

45 (18.7%)

0.33

Klebsiella sp.Enterobacter sp. Serratia sp.

29 (10.8%)

92 (58–549)

10 (9.2%)

19 (11.9%)

0.47

5 (8.8%)

10 (7.1%)

0.70

6 (22.2%)

23 (9.5%)

0.04

Pseudomonas sp.

9 (3.4%)

59 (44–670)

0 (0.0%)

9 (5.7%)

0.01

0 (0.0%)

5 (3.6%)

0.15

0 (0.0%)

9 (3.7%)

0.31

Gram negative rods

91 (34.0%)

100 (66–660)

32 (29.4%)

59 (37.1%)

0.18

23 (40.4%)

39 (27.9%)

0.09

9 (33.3%)

82 (34.0%)

0.94

Anaerobes

11 (4.1%)

112 (12–500)

8 (7.3%)

3 (1.9%)

0.03

2 (3.5%)

4 (2.9%)

0.81

0 (0.0%)

11 (4.6%)

0.26

Fungi

7 (2.6%)

52 (30–55)

2 (1.8%)

5 (3.1%)

0.51

0 (0.0%)

3 (2.1%)

0.27

0 (0.0%)

7 (2.9%)

0.37

  1. Not all the infectious agents are listed in this table. Since several agents were isolated in the same sample of ascitic fluid, the total may exceed 100%.
  2. 1comparison between non-nosocomial and nosocomial episodes.
  3. 2comparison between SBP and bacterascites.
  4. 3comparison between episodes with and without fluoroquinolone (norfloxacine) prophylaxis.