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Table 4 Diagnostic accuracy of the ID-EC paper and smart app questionnaires

From: Development and validation of the ID-EC - the ITALIAN version of the identify chronic migraine

 

Sensitivity (%)

Specificity (%)

NPV (%)a

PPV (%)a

Paper version

81.5

81.1

72.3

88.0

Smart app version

64.9

90.2

74.1

85.6

English version [7]

80.6

88.6

75.0

91.5

  1. NPV indicates negative predictive value, PPV positive predictive value
  2. aassuming a prevalence of CM of 39.3% in paper versions and 47.3% in smart app validation