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Table 2 Influenza diagnosis status versus laboratory test results

From: Evaluation of the accuracy of diagnostic coding for influenza compared to laboratory results: the availability of test results before hospital discharge facilitates improved coding accuracy

Influenza diagnosis

Laboratory results

PCR+

PCR−

Total

ICD10+

2381

146

2527

ICD10−

378

13,534

13,912

Total

2759

13,680

16,439

Accuracy measures (95% CI)

   

 Sensitivity

86.3 (85.0–87.6)

  

 Specificity

98.9 (98.7–99.1)

  

 PPV

94.3 (93.2–95.1)

  

 NPV

97.3 (97.0–97.5)

  
  1. PPV positive predictive value, NPV negative predictive value
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BMC Medical Informatics and Decision Making

ISSN: 1472-6947

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