Using item response theory (IRT) to improve the efficiency of the Simple Clinical Colitis Activity Index (SCCAI) for patients with ulcerative colitis.

Background: The SCCAI was designed to facilitate assessment of disease activity in ulcerative colitis (UC). We aimed to interrogate the metric properties of individual items of the SCCAI using item response theory (IRT) analysis, to simplify and improve its performance.Methods: The original 9-item S...

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Bibliographic Details

Published in:	BMC Gastroenterology Vol. 21; no. 1; pp. 1 - 9
Main Authors:	Walsh, Alissa, Cao, Rena, Wong, Darren, Kantschuster, Ramona, Matini, Lawrence, Wilson, Jean, Kormilitzin, Andrey, South, Matthew, Travis, Simon, Bauermeister, Sarah
Format:	Journal Article
Published:	BioMed Central 3/22/2021
Online Access:	View this record in EBSCOhost