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Antibiotic stewardship programs (ASP) are coordinated interventions promoting the responsible use of antibiotics to improve patient outcomes and reduce antibiotic resistant bacterias. The objectives are to evaluate the effectiveness of a pharmacist-led ASP in a LTCF, to characterise antibiotic therapy and assess the appropriateness of antibiotic prescriptions. A prospective quasi-experimental study to implement an ASP in a LTCF. Antibiotic prescriptions for suspected infections initiated in any setting for LTCF residents were included. We assessed appropriateness and prospective audits and feedback of each inappropriate antimicrobial prescription were carried out. Associations of variables with appropriate antibiotic prescribing were estimated using logistic regression. A total of 416 antibiotic prescriptions were included. The mean consumption of antibiotics was reduced from 63.2 defined daily doses per 1000 residents-days (DRD) in the preintervention period to 22.8 in the intervention period (\u2212 63.8%), with a signifcant drop in fluoroquinolones (81.4%). Overall, 46.6% of antibiotic prescriptions were judged inappropriate, mainly because of a use not recommended in treatment guidelines (63.2%). Multivariable analysis showed that empirical therapy, some classes of antibiotics (cephalosporins, fluoroquinolones, fosfomycin calcium, macrolides) and prescription initiation in the emergency department were independent predictors of antimicrobial inappropriateness. Pharmacist-led ASP in a LTCF has being effective in reducing consumption of antibiotics by improving appropriateness of treatment decisions. However, ASP should include interventions in the emergency department because of the high inappropriate use in this setting.<\/jats:p>","DOI":"10.1038\/s41598-021-98431-9","type":"journal-article","created":{"date-parts":[[2021,9,23]],"date-time":"2021-09-23T10:57:49Z","timestamp":1632394669000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["RETRACTED ARTICLE: Pharmacist-driven antimicrobial stewardship program in a long-term care facility by assessment of appropriateness"],"prefix":"10.1038","volume":"11","author":[{"given":"Mar\u00eda Rosa","family":"Cantudo-Cuenca","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alberto","family":"Jimenez-Morales","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan Enrique","family":"Mart\u00ednez-de la Plata","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2021,9,23]]},"reference":[{"issue":"4","key":"98431_CR1","doi-asserted-by":"publisher","first-page":"363","DOI":"10.1097\/QCO.0000000000000071","volume":"27","author":"LE Nicolle","year":"2014","unstructured":"Nicolle, L. 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Please see the Retraction Notice for more detail:","order":6,"name":"change_details","label":"Change Details","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"https:\/\/doi.org\/10.1038\/s41598-021-00221-w","URL":"https:\/\/doi.org\/10.1038\/s41598-021-00221-w","order":7,"name":"change_details","label":"Change Details","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"The authors declare no competing interests.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"18884"}}