Analyses of Hospital Administrative Data That Use Diagnosis Codes Overestimate the Cases of Acute Pancreatitis  Shreyas Saligram, David Lo, Melissa Saul, Dhiraj Yadav  Clinical Gastroenterology and Hepatology  Volume 10, Issue 7, Pages 805-811.e1 (July 2012) DOI: 10.1016/j.cgh.2012.03.025 Copyright © 2012 AGA Institute Terms and Conditions

Figure 1 Relationship between specificity and PPV of the criteria used to identify patients with AP using administrative datasets. PPV can improve further if natural language processing for radiology reports is incorporated. Unique patients may not be chosen when the interest is to study episodes of AP. Exclusion of patients with AP or CP diagnosis will depend on study aims. Clinical Gastroenterology and Hepatology 2012 10, 805-811.e1DOI: (10.1016/j.cgh.2012.03.025) Copyright © 2012 AGA Institute Terms and Conditions