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      An interrupted time series analysis of parenteral antibiotic use in Colombia.

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          Abstract

          A University-based hospital in Bogotá, Colombia, developed and implemented an educational intervention to complement a new structured antibiotic order form. This intervention was performed after assessing the appropriateness of the observed antibiotic prescribing practices using a quasi-experimental study. An application of interrupted time series intervention analysis was conducted in three antibiotic groups (aminoglycosides, cephradine/cephalothin, and ceftazidime/cefotaxime) and their hospital weekly rate of incorrect prescriptions before and after the intervention. A fourth time series was defined on prophylactic antibiotic use in elective surgery. Preintervention models were used in the postintervention series to test for pre-post series level differences. An abrupt constant change was significant in the first, third, and fourth time series indicating a 47, 7.3, and 20% reduction of incorrect prescriptions after the intervention. We conclude that a structured antibiotic order form, coupled with graphic and educational interventions can improve antibiotic use in a university hospital.

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          Author and article information

          Journal
          J Clin Epidemiol
          Journal of clinical epidemiology
          Elsevier BV
          0895-4356
          0895-4356
          Oct 2003
          : 56
          : 10
          Affiliations
          [1 ] Clinical Epidemiology and Biostatistics Unit, Pontificia Universidad Javeriana, Bogotá, Colombia. adriana.perez@uth.tmc.edu
          Article
          S089543560300163X
          10.1016/s0895-4356(03)00163-x
          14568634
          6f2836c1-39c6-44f5-a9d8-4c5dcf3ff6b1
          History

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