Racial Disparities in Adherence to Quality Indicators in Barrett's Esophagus: An Analysis Using the GIQuIC National Benchmarking Registry

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INTRODUCTION: Racial disparities in outcomes in esophageal adenocarcinoma are well established. Using a nationwide registry, we aimed to compare clinical and endoscopic characteristics of blacks and whites with Barrett's esophagus (BE) and adherence to defined quality indicators. METHODS: We analyzed data from the Gastrointestinal Quality Improvement Consortium Registry between January 2012 and December 2019. Patients who underwent esophagogastroduodenoscopy with an indication of BE screening or surveillance, or an endoscopic finding of BE, were included. Adherence to recommended endoscopic surveillance intervals of 3-5 years for nondysplastic BE and adherence to Seattle biopsy protocol were assessed. Multivariate logistic regression was conducted to assess variables associated with adherence. RESULTS: A total of 100,848 esophagogastroduodenoscopies in 84,789 patients met inclusion criteria (blacks-3,957 and whites-96,891). Blacks were less likely to have histologically confirmed BE (34.3% vs 51.7%, P < 0.01), had shorter BE lengths (1.61 vs 2.35 cm, P < 0.01), and were less likely to have any dysplasia (4.3% vs 7.1%, P < 0.01). Although whites were predominantly male (62.2%), about half of blacks with BE were female (53.0%). Blacks with nondysplastic BE were less likely to be recommended appropriate surveillance intervals (OR 0.78; 95% CI 0.68-0.89). Adherence rates to the Seattle protocol were modestly higher among blacks overall (OR 1.12, 95% CI 1.04-1.20), although significantly lower among blacks with BE segments >6 cm. DISCUSSION: The use of sex as a risk factor for BE screening may be inappropriate among blacks. Fewer blacks were recommended appropriate surveillance intervals, and blacks with longer segment BE were less likely to undergo Seattle biopsy protocol.

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