Table 3

Number of cultures

Type of culture

Control group

Treatment group

Fisher's exact test


n

Positive n

Number of patients with positive cultures

n

Positive n

Number of patients with positive cultures


All

122

25

5/7

118

33

6/8

NS

Blood

32

5

3/7 (3/5)

30

0

0/8 (0/5)

NS

Catheter tips

22

4

3/7 (3/4)

22

4

3/8 (3/6)

NS

Tracheal secretions

14

6

2/7 (2/6)

15

6

5/8 (5/6)

NS

Urine

19

1

1/7 (1/7)

18

4

2/8 2(/6)

NS


Figures in parentheses show the number of patients with positive cultures in relation to the number of patients from whom the respective type of culture were taken. In the treated group, five cultures were positive in the control group while no positive cultures were found in the treatment group. Due to the small numbers of patients (we performed statistics as participating patients and not as independent cultures), a significant difference was not reached (NS, not significant).

Klarin et al. Critical Care 2005 9:R285-R293   doi:10.1186/cc3522

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