Publications by authors named "John I Allen"

Introduction: Modeling supporting recommendations for colonoscopy and stool-based colorectal cancer (CRC) screening tests assumes 100% sequential participant adherence. The impact of observed adherence on the long-term effectiveness of screening is unknown. We evaluated the effectiveness of a program of screening colonoscopy every 10 years vs annual high-sensitivity guaiac-based fecal occult blood testing (HSgFOBT) using observed sequential adherence data.

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Background & Aims: Colorectal cancer (CRC) screening guidelines include screening colonoscopy and sequential high-sensitivity fecal occult blood testing (HSgFOBT), with expectation of similar effectiveness based on the assumption of similar high adherence. However, adherence to screening colonoscopy compared with sequential HSgFOBT has not been reported. In this randomized clinical trial, we assessed adherence and pathology findings for a single screening colonoscopy vs sequential and nonsequential HSgFOBTs.

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Background: In response to the COVID-19 pandemic, the CDC issued guidance advising patients and providers to adopt social distancing practices such as home-based infusions (H-BI).

Methods: We performed a mixed methods evaluation to summarize perceptions, concerns, and experiences with H-BI among all inflammatory bowel disease patients 18-90 years of age who transitioned to home-based infliximab or vedolizumab infusions between March to July 2020 at a tertiary care center. Semi-structured interviews were conducted and analyzed using an iterative, inductive thematic approach.

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Background & Aims: Despite rescue therapy, more than 30% of patients with acute severe ulcerative colitis (ASUC) require colectomy. Tofacitinib is a rapidly acting Janus kinase inhibitor with proven efficacy in ulcerative colitis. Tofacitinib may provide additional means for preventing colectomy in patients with ASUC.

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Background: Opioid use by patients with inflammatory bowel disease (IBD) has been associated with poorer health outcomes. This study describes socioeconomic characteristics; health utilization trends; and costs of patients with IBD and either no opioid prescriptions, or in 1 of 3 opioid duration categories based on Center for Disease Control guidelines: acute (0-30 days), moderate (31-90 days), or chronic (>90 days). We utilized the Cost of IBD Care Optum research database results for this study.

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Background: High-deductible health plans (HDHPs) are increasing in prevalence as a cost control device for slowing health care cost growth by reducing nonessential medical service utilization. High cost-sharing associated with HDHPs can lead to significant financial distress and worse disease outcomes. We hypothesize that chronic disease patients are delaying or foregoing necessary medical care due to health care costs.

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Background: Mental health diagnoses (MHDs) were identified as significant drivers of inflammatory bowel disease (IBD)-related costs in an analysis titled "Cost of Care Initiative" supported by the Crohn's & Colitis Foundation. In this subanalysis, we sought to characterize and compare IBD patients with and without MHDs based on insurance claims data in terms of demographic traits, medical utilization, and annualized costs of care.

Methods: We analyzed the Optum Research Database of administrative claims from years 2007 to 2016 representing commercially insured and Medicare Advantage insured IBD patients in the United States.

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Studies assessing colonoscopic practice have demonstrated variation in adenoma detection rate, detection rates of advanced adenomas, and detection rates of sessile serrated lesions (SSLs). Our aims were to study the patient-, provider-, and procedure-level variables associated with detection rates of adenoma, SSLs, and advanced neoplasia in screening colonoscopies performed in large community practice.

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The use of advanced practice providers (APPs), such as nurse practitioners and physician assistants, has grown substantially in gastroenterology practices in the United States. The first formal training programs appeared in the mid-1960s; however, incorporation of APPs into gastroenterology practices occurred sporadically until the early 1990s, when several large practices began utilizing APPs in both outpatient and inpatient environments. Over the next 20 years, APPs became increasingly more common.

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Background: The Crohn's & Colitis Foundation's Cost of Inflammatory Bowel Disease (IBD) Care Initiative seeks to quantify the wide-ranging health care costs affecting patients living with IBD. We aimed to (1) describe the annualized direct and indirect costs of care for patients with Crohn's disease (CD) or ulcerative colitis (UC), (2) determine the longitudinal drivers of these costs, and (3) characterize the cost of care for newly diagnosed patients.

Methods: We analyzed the Optum Research Database from the years 2007 to 2016, representing commercially insured and Medicare Advantage-insured patients in the United States.

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As many as 25% of patients diagnosed with ulcerative colitis are hospitalized with an episode of acute severe ulcerative colitis (ASUC). The standard of care for patients hospitalized with ASUC relies on rapid induction with intravenous (IV) corticosteroids. Up to 30% of patients do not respond to corticosteroids alone.

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Purpose Of Review: The purpose of this review is to summarize the current state of endoscopic quality measurement and use of measures in enhancing the value of endoscopic services.

Recent Findings: Initially, quality measurement of endoscopic procedures was claims based or included small unit or practice-specific efforts. Now we have a mature national registry and large electronic medical or procedural records that are designed to yield valuable data relevant to quality measurement.

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