<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-04-14T02:07:55Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:2072/486811" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:2072/486811</identifier><datestamp>2025-09-17T08:40:46Z</datestamp><setSpec>com_2072_98</setSpec><setSpec>col_2072_378192</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>A machine learning model exploring the relationship between chronic medication and COVID-19 clinical outcomes</dc:title>
   <dc:creator>Miró, Berta</dc:creator>
   <dc:creator>Díaz González, Natalia</dc:creator>
   <dc:creator>Martínez-Cerdá, Juan-Francisco</dc:creator>
   <dc:creator>Viñas-Bardolet, Clara</dc:creator>
   <dc:creator>Sánchez, Alex</dc:creator>
   <dc:creator>Sánchez-Montalvá, Adrián</dc:creator>
   <dc:creator>Miarons, Marta</dc:creator>
   <dc:subject>ACE inhibitors</dc:subject>
   <dc:subject>ARBs</dc:subject>
   <dc:subject>COVID-19</dc:subject>
   <dc:subject>HMG-CoA reductase</dc:subject>
   <dc:subject>Machine learning</dc:subject>
   <dc:subject>Metformin</dc:subject>
   <dc:subject>Mortality</dc:subject>
   <dc:subject>Polypharmacy</dc:subject>
   <dc:subject>Prediction models</dc:subject>
   <dc:description>Altres ajuts: acords transformatius de la UAB</dc:description>
   <dc:description>Background: The impact of chronic medication on COVID-19 outcomes has been a topic of ongoing debate since the onset of the pandemic. Investigating how specific long-term treatments influence infection severity and prognosis is essential for optimising patient management and care. Aim: This study aimed to investigate the association between chronic medication and COVID-19 outcomes, using machine learning to identify key medication-related factors. Method: We analysed 137,835 COVID-19 patients in Catalonia (February-September 2020) using eXtreme Gradient Boosting to predict hospitalisation, ICU admission, and mortality. This was complemented by univariate logistic regression analyses and a sensitivity analysis focusing on diabetes, hypertension, and lipid disorders. Results: Participants had a mean age of 53 (SD 20) years, with 57% female. The best model predicted mortality risk in 18 to 65-year-olds (AUCROC 0.89, CI 0.85-0.92). Key features identified included the number of prescribed drugs, systemic corticoids, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, and hypertension drugs. A sensitivity analysis identified that hypertensive participants over 65 taking angiotensin-converting enzyme (ACE) inhibitors or angiotensin II receptor blockers (ARBs) had lower mortality risk (OR 0.78 CI 0.68-0.92) compared to those on other antihypertensive medication (OR 0.8 CI 0.68-0.95). Treatment with inhibitors of dipeptidyl peptidase 4 was associated to higher mortality in participants aged 18-65, while metformin showed a protective effect in those over 65 (OR 0.79, 95% CI 0.68-0.92). Conclusion: Machine learning models effectively distinguished COVID-19 outcomes. Patients under ACEi or ARBs or biguanides should continue their prescribed medications, which may offer protection over alternative treatments.</dc:description>
   <dc:date>2025</dc:date>
   <dc:type>Article</dc:type>
   <dc:identifier>https://ddd.uab.cat/record/318583</dc:identifier>
   <dc:identifier>urn:10.1007/s11096-025-01955-7</dc:identifier>
   <dc:identifier>urn:oai:ddd.uab.cat:318583</dc:identifier>
   <dc:identifier>urn:scopus_id:105012031583</dc:identifier>
   <dc:identifier>urn:articleid:22107711v47n4p1075</dc:identifier>
   <dc:identifier>urn:pmid:40720062</dc:identifier>
   <dc:identifier>urn:pmc-uid:12335402</dc:identifier>
   <dc:identifier>urn:pmcid:PMC12335402</dc:identifier>
   <dc:identifier>urn:oai:pubmedcentral.nih.gov:12335402</dc:identifier>
   <dc:identifier>http://hdl.handle.net/2072/486811</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>International Journal of Clinical Pharmacy ; Vol. 47, Núm. 4 (August 2025), p. 1075-1086</dc:relation>
   <dc:rights>open access</dc:rights>
   <dc:rights>Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.</dc:rights>
   <dc:rights>https://creativecommons.org/licenses/by/4.0/</dc:rights>
   <dc:format>application/pdf</dc:format>
   <dc:publisher/>
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