• Benjamin G Allar, Rumel Mahmood, Gezzer Ortega, Taïsha Joseph, Lorky N Libaridian, Evangelos Messaris, Ketan Sheth, and Heidi J Rayala.
• Center for Surgery and Public Health, Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States of America; Division of Colon and Rectal Surgery, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America.
• Prev Med. 2023 Jan 1; 166: 107389107389.

AbstractThough rates of colorectal cancer (CRC) screening continue to improve with increased advocacy and awareness, there are numerous disparities that continue to be defined within different health systems and populations. We aimed to define associations between patients' socio-demographic characteristics and CRC screening in a well-resourced safety-net health system. A retrospective review was performed from 2018 to 2019 of patients between 50 and 75-years-old who had a primary care visit within the last two years. Numerous patient characteristics were extracted from the medical record, including self-reported race, self-reported ethnicity, insurance, preferred language, severe mental health diagnoses (SMHD), and substance use disorder (SUD). Multivariate logistic regression assessed characteristics associated with CRC screening. Of 22,145 included patients, 16,065 (72.5%) underwent CRC screening. <40% of the population was White or of North American/European ethnicity and 38% had limited English proficiency. Hispanic patients had the highest screening rate while White patients had the lowest among races (78.1% vs 68.5%, respectively). White patients had higher rates of SMHD and SUD (p < 0.001). In multivariable analysis, most other races (Black, Asian, and Hispanic), ethnicities, and languages had significantly higher odds of screening, ranging from 20% to 55% higher, when White, North American/European, English-speakers are used as reference. In a well-resourced safety-net health system, patients who were non-White, non-North American/European, and non-English-speaking, had higher odds of CRC screening. This data from a unique health system may better guide screening outreach and implementation strategies in historically under-resourced communities, leading to strategies for equitable colorectal cancer screening.Copyright © 2022 Elsevier Inc. All rights reserved.

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