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Table 4 Sensitivity, Specificity, positive predictive value, negative predictive value, positive and negative likelihood ratio for CRBSI (n = 114)

From: Local signs at insertion site and catheter-related bloodstream infections: an observational post hoc analysis using individual data of four RCTs

 

Prevalence of local sign

Sensitivity

Specificity

PPV

NPV

Positive LR

Negative LR

≥ 1 local sign (n = 1938)

13.3

40.4

86.9

2.4

99.5

3.09

0.69

Redness (n = 1633)

11.2

28.1

88.9

2.0

99.4

2.54

0.81

Pain (n = 59)

0.4

1.7

99.6

3.3

99.2

4.46

0.99

Non-purulent discharge (n = 251)

1.7

6.1

98.3

2.8

99.3

3.64

0.95

Purulent discharge (n = 102)

0.7

11.4

99.4

12.7

99.3

18.55

0.99

  1. PPV, positive predictive value; NPV, negative predictive value; LR likelihood ratio
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Critical Care

ISSN: 1364-8535