Abstract TP396: Does Implementation of Enhanced Data Quality Assurance Procedures Improve Data Quality in Stroke Registries? Experience from the University of Texas Houston Stroke Registry

Background: Limited information has been published regarding standard procedures to ensure data quality in stroke registries. We share our experience regarding the establishment of enhanced quality assurance (QA) procedures for the University of Texas Houston Stroke Registry (UTHSR) and test whether these QA procedures have improved data quality in UTHSR. Methods: All 5092 patients’ records that were abstracted and entered in UTHSR, between January 1, 2008 and December 31, 2011, were considered in this study. A random subset of 30 records was used for re-abstraction of 24 key variables by two abstractors. From these 30 records, a subset of 13 was re-abstracted by a team of experts as the “gold standard”. We assessed inter-rater reliability (IRR) between the two abstractors as well as each abstractor with the gold standard. Depending on the scale of variables, IRR was assessed with Kappa or by intra-class correlations (ICC) using a 2-way, random effects ANOVA. For assessment of data quality we re-abstracte...