Skip to main content

Table 4 Univariate analysis of factors predicting positive blood cultures

From: Correlation between mass and volume of collected blood with positivity of blood cultures

 

Positivity, n (%)

OR

CI 95 %

P

No

Yes

Gender

 Female

118 (91.5)

11 (8.5)

   

 Male

172 (79.6)

44 (20.4)

2.74

1.36–5.53

0.005

Diagnosis on admission

 Sepsis/septic shock/other shock states

123 (78.8)

33 (21.2)

  

0.063

 Respiratory failure

68 (94.4)

4 (5.6)

0.22

0.08–0.65

0.006

 Neurologic disorders

46 (88.5)

6 (11.5)

0.49

0.19–1.24

0.130

 Solid organ transplantation

18 (81.8)

4 (18.2)

0.83

0.26–2.62

0.748

 Others

35 (81.8)

8 (18.6)

0.85

0.36–2.01

0.715

Median age (in years)a

68 (52–82)

68 (56–78)

1.00

0.98–1.01

0.884

Number of comorbiditiesa

3 (2–4)

3 (2–4)

1.00

0.82–1.22

0.972

Number of blood cultures pairsa

2 (1–3)

3 (2–7)

1.28

1.16–1.42

<0.001

Mean body temperature (°C) at time of collectiona

36.7 (36.1–37.3)

37.0 (36.0–37.6)

1.20

0.90–1.62

0.220

Body temperature ≥37.8 °C at time of collection

 No

212 (86.5)

33 (13.5)

   

 Yes

78 (78.0)

22 (22.0)

1.81

1.00–3.30

0.052

Body temperature ≥39.0 °C at time of collection

 No

285 (84.8)

51 (15.2)

   

 Yes

5 (55.6)

4 (44.4)

4.47

1.16–17.21

0.029

Collected median volume (mL)a

35 (20–52)

56 (34–95)

1.02

1.01–1.03

<0.001

Collected median weight (g)a

35 (21–53)

54 (32–82)

1.02

1.01–1.02

<0.001

  1. Italic values indicate statistically significant associations
  2. aData described by median and interquartile range (first quartile–third quartile)