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Table 3 Results of the ROC Curve Analysis on serum SOD and CRP Between PJI group and non-PJI group

From: Decreased serum superoxide dismutase concentration has a high value for the diagnosis of periprosthetic joint infection—a single-center, retrospective study

 

AUC

95%CI

Optimal cutoff

Youden index

Sensitivity

Specificity

PPV

NPV

P-Value

CRP

0.943

0.893—0.974

 > 11 mg/L

0.83

90

93

86.5

94.9

 < 0.0001

SOD

0.919

0.863—0.957

 ≤ 149.5U/ml

0.69

72

97

92.3

87.4

 < 0.0001

CRP + SOD

0.963

0.919–0.987

——

0.82

88

94

88

94

 < 0.0001

  1. CRP C-reactive protein, SOD superoxide dismutase, PPV Positive Predictive Value, NPV Negative Predictive Value, LR + positive likelihood ratio, LR − negative likelihood ratio
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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