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Title: A systematic review of approaches for calculating the cost of medication errors
Authors: Patel, Krishan
Jay, Robert
Shahzad, Muhammad W.
Green, William
Patel, Rakesh
First Published: 8-Jun-2016
Publisher: BMJ Publishing Group for European Association of Hospital Pharmacists
Citation: European Journal of Hospital Pharmacy, 2016, 23 (5), pp. 294-301
Abstract: Introduction: Although medication errors may cause significant morbidity and mortality, the true cost of avoidable harm from such errors is unclear. While studies describe different methods for calculating a financial cost from an error, there remains variability in the way calculations are conducted depending on the clinical context. This review aimed to investigate the range of approaches for calculating medication error costs across healthcare settings. Methods: A systematic review was carried out with a duplicate data extraction approach and mixed methods data synthesis. Medline, Embase and Web of Science were searched for studies published between 1993 and 2015. Studies that explicitly described a method for calculating medication error cost were included. The variables used for the calculations and a description of the approach for calculating errors were reported. Results: 21 studies were included in the final review. There was wide variation in the way calculations were undertaken, with some calculations using a single variable only and others using several variables in a multistep approach. Few calculations included indirect costs, such as loss of earnings for the patient, and only one calculation considered opportunity cost. The majority of studies presented direct medication error costs whereas others approximated error costs from the savings made following an intervention. Conclusions: There are a wide range of methods used for calculating the cost of medication errors. The diversity arises from the number of variables used in calculations, the perspective from which the calculation is conducted from, and the degree of economic rigour applied by researchers.
DOI Link: 10.1136/ejhpharm-2016-000915
ISSN: 2047-9956
eISSN: 2047-9964
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2016 European Association of Hospital Pharmacy. This version of the article is distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License ( ), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Appears in Collections:Published Articles, Dept. of Medical and Social Care Education

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