Antibiotic stewardship based on education: minor impact on knowledge, perception and attitude

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Abstract
Purpose: The purpose of this study was to implement an education-based antibiotic stewardship programme at two regional hospitals in Denmark, and thereby reduce consumption of antibiotics in general and cephalosporins and fluoroquinolones in particular. We aimed to improve physicians’ knowledge, prescribing practices and perceptions and attitudes towards antibiotics, and to achieve changes in behaviour. Methods: The antibiotic stewardship programme comprised education, guidelines, audits and feedback and ward rounds by a clinical microbiologist. The ward rounds were implemented only at one hospital. The effects of the programme were evaluated using a questionnaire, audits of prescriptions (initial choice of antibiotics, indication for antibiotic treatment, re-assessment of treatment) and data on antibiotic consumption. Results: The survey revealed an improvement in junior doctors’ knowledge, perception and attitude and self-reported prescribing practice. In the audit results, a larger proportion of prescribed antibiotics was in accordance with guidelines, particularly when we evaluated re-assessment of antibiotic treatment at the hospital where ward rounds had been implemented. The increase was equivalent to risk ratio (RR) 1.13 (95% confidence interval (CI): 0.95–1.35) during the intervention and RR 1.22 (95% CI 1.01–1.48) post-intervention, compared to the pre-intervention period. Penicillins as well as total antibiotic consumption increased during the study period. Conclusion: An education-based antibiotic stewardship programme can change the attitude of junior doctors and improve prescribing practices. We observed an improvement in the re-assessments of the antibiotic treatments at the hospital where a clinical microbiologist was present at ward rounds, but our persuasive methods were insufficient to reduce antibiotic consumption.

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