1. What Is the Role of the Inflammatory Bowel Disease Panel in Diagnosis and Treatment? 
Millie D. Long, Bruce E. Sands 
Clinical Gastroenterology and Hepatology 
Volume 16, Issue 5, Pages (May 2018)
DOI: /j.cgh
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2. Figure 1
An example diagnostic test: positive predictive value (PPV) and negative predictive value (NPV) as a function of prevalence of disease. For any given test, the lower the prevalence, the lower the PPV. As inflammatory bowel disease is a low prevalence condition in the general population, * even a test with good sensitivity and specificity (>90%) may have a low PPV.
∗In populations with higher prevalence of disease (i.e., symptomatic populations with specific clinical characteristics and/or laboratory abnormalities) the PPV would differ.
Clinical Gastroenterology and Hepatology  , DOI: ( /j.cgh )
Copyright © 2018 AGA Institute Terms and Conditions