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Table 1 Relative frequency of blood isolates in Henry Dunant Hospital, Athens, Greece (01/01/2001–30/6/2005).

From: Secular trends of antimicrobial resistance of blood isolates in a newly founded Greek hospital

 

Number of isolates (proportion within the year)

Microorganisms

2001 (n = 182)

2002 (n = 506)

2003 (n = 693)

2004 (n = 566)

2005* (n = 208)

Total

p-value

Gram-positive

       

Coagulase-negative staphylococci

84 (46.2)

282 (55.6)

377 (54.4)

297 (52.5)

94 (45.1)

1134 (52.5)

0.03

Staphylococcus aureus

12 (6.6)

40 (7.9)

42 (6.1)

27 (4.8)

8 (3.8)

129 (5.9)

0.16

Enterococcus faecalis

2 (1.1)

15 (3.0)

21 (3.0)

6 (1.1)

4 (1.9)

48 (2.2)

0.09

Enterococcus faecium

4 (2.2)

14 (2.8)

8 (1.2)

11 (1.9)

2 (0.9)

39 (1.8)

0.25

Gram negative

       

Escherichia coli

15 (8.2)

36 (7.1)

57 (8.2)

54 (9.5)

30 (14.4)

192 (8.9)

0.03

Pseudomonas aeruginosa

13 (7.1)

29 (5.7)

35 (5.0)

26 (4.6)

11 (5.3)

114 (5.2)

0.72

Acinetobacter baumannii

10 (5.5)

10 (2.0)

15 (2.2)

38 (6.7)

17 (8.2)

90 (4.1)

<0.001

Proteus mirabilis

3 (1.7)

1 (0.2)

1 (0.1)

4 (0.7)

3 (1.4)

12 (0.5)

0.03

Klebsiella spp.

5 (2.8)

17 (3.4)

39 (5.6)

33 (5.7)

11 (5.3)

105 (4.8)

0.18

Enterobacter spp.

4 (2.2)

8 (1.6)

24 (3.5)

9 (1.6)

3 (1.4)

48 (2.2)

0.11

Salmonella spp.

2 (1.1)

1 (0.2)

4 (0.6)

9 (1.6)

0 (0)

16 (0.7)

0.05

Others(include other Gram positive and Gram negative)

22 (12)

25 (4.9)

34 (4.9)

26 (4.6)

15 (7.2)

122 (5.6)

0.002

Fungi

       

Candida

6 (3.3)

29 (5.7)

36 (5.2)

26 (4.6)

10 (4.8)

107 (4.9)

0.74