• Sarah Berdot, Marjorie Roudot, Catherine Schramm, Sandrine Katsahian, Pierre Durieux, and Brigitte Sabatier.
• Service de Pharmacie, Hôpital Européen Georges Pompidou, APHP, Paris, France; INSERM, UMR_S 1138, Equipe 22, Centre de Recherche des Cordeliers, F-75006 Paris, France. Electronic address: sarah.berdot@aphp.fr.
• Int J Nurs Stud. 2016 Jan 1; 53: 342-50.

Background And ObjectivesSerious medication administration errors are common in hospitals. Various interventions, including barcode-based technologies, have been developed to help prevent such errors. This systematic review and this meta-analysis focus on the efficacy of interventions for reducing medication administration errors. The types of error and their gravity were also studied.MethodsMEDLINE, EMBASE, the Cochrane Library and reference lists of relevant articles published between January 1975 and August 2014 were searched, without language restriction. Randomized controlled trials, interrupted time-series studies, non-randomized controlled trials and controlled before-and-after studies were included. Studies evaluating interventions for decreasing administration errors based on total opportunity for error method were included. Nurses administering medications to adult or child inpatients were considered eligible as participants. Two reviewers independently assessed studies for eligibility, extracted data and assessed the risk of bias. The main outcome was the error rate without wrong-time errors measured at study level. A random effects model was used to evaluate the effects of interventions on administration errors.Results5312 records from electronic database searches were identified. Seven studies were included: five were randomized controlled trials (including one crossover trial) and two were non-randomized controlled trials. Interventions were training-related (n=4; dedicated medication nurses, interactive CD-ROM program, simulation-based learning, pharmacist-led training program), and technology-related (n=3; computerized prescribing and automated medication dispensing systems). All studies were subject to a high risk of bias, mostly due to a lack of blinding to outcome assessment and a risk of contamination. No difference between the control group and the intervention group was found (OR=0.72 [0.39; 1.34], p=0.3). No fatal error was observed in the three studies evaluating the gravity of errors.ConclusionsThis review did not find evidence that interventions can effectively decrease administration errors. In addition, most studies had a high risk of bias. More evaluation studies with stronger designs are required.Copyright © 2015 Elsevier Ltd. All rights reserved.

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