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Table 2 Sensitivity and specificity of the Activity Pattern Interview (N = 226)

From: Clinical assessment of the physical activity pattern of chronic fatigue syndrome patients: a validation of three methods

  

Actometer typology

 
  

Passive

Active

 

Activity Pattern Interview

Passive (N/%)

34/(52.3%) (= sensitivity)

39/(24.2%)

73 (32%)

 

Active (N/%)

31/(47.7%)

122/(75.8%) (= specificity)

153 (68%)

  

65/(100%)

161/(100%)

226 (100%)

  1. Predictive value of a positive test (sensitivity) PV+ = 34/65 = 0.523
  2. Predictive value of a negative test (specificity) PV- = 122/161 = 0.758
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Health and Quality of Life Outcomes

ISSN: 1477-7525

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