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Table 2 Sensitivity and specificity of Fisher interpretation function

From: Application of combined cerebrospinal fluid physicochemical parameters to detect intracranial infection in neurosurgery patients

 Calculation results
Uninfected casesInfected cases
Uninfected group (N = 10)100
Infected group (N = 40)634
sensitivity85.0% (34/40)
specificity100% (34/34)
  1. Note: 40 positive and 10 negative cases were included. According to the function formula, 10 negative cases were all negative, 34 of 40 positive samples were positive, and 6 were negative. The sensitivity and specificity of this formula was 85.0 and 100%, respectively