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Table 5 Predictors of bacterial co-infection

From: Bacterial co-infection of the respiratory tract in ventilated children with bronchiolitis; a retrospective cohort study

 

Negative (N = 37)

Co-infection (N = 63)

Low Bacterial Growth (N = 67)

P Value** univariate

P Value** Multivariate

Age (months)

4.1 ± 5.2

2.3 ± 2.6

3.0 ± 3.4

0.053

0.088

Fever (> 38,5 °C)

0 (0.0%)

3 (4.8%)

1 (1.5%)

0.394

 

CRP (mg/l)*

57.6 ± 53.8

97.7 ± 51.8

102.6 ± 69.5

< 0.001

0.001

CRP 0–40 mg/l

21 (56.8%)

9 (14.3%)

12 (17.9%)

< 0.001

 

40–100 mg/l

9 (24.3%)

28 (44.4%)

23 (34.3%)

  

> 100 mg/l

7 (18.9%)

26 (41.3%)

32 (47.8%)

  

Leukocytes* (10e9/ml)*

12.58 ± 4,72

14.67 ± 7.25

14.16 ± 6.79

0.085

Neutrophils* (10e9/ml)*

6.38 ± 4,45

8.93 ± 6.50

8.40 ± 6.41

0.048

Two viral infections

4/21 (19.0%)

6/23 (26.1%)

12/43 (27.9%)

0.578

 

CXR*** Consolidation

15/36 (19.0%)

25/62 (40.3%)

33/66 (50.0%)

0.896

 

Antibiotics before 1st culture

9/34 (75.0%)

21/59 (35.6%)

39/63 (61.9%)

< 0.001

0.000

  1. * maximum value
  2. ** negative vs co-infection;- participated in the multivariate analysis, but removed
  3. *** chest x-ray