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Effects of Pharmacists' Interventions on Appropriateness of Prescribing and Evaluation of the Instruments' (MAI, STOPP and STARTs') Ability to Predict Hospitalization-Analyses from a Randomized Controlled Trial

Gillespie, Ulrika (author)
Uppsala universitet,Institutionen för farmaceutisk biovetenskap
Alassaad, Anna (author)
Uppsala universitet,Klinisk farmakogenomik och osteoporos
Hammarlund-Udenaes, Margareta (author)
Uppsala universitet,Institutionen för farmaceutisk biovetenskap
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Morlin, Claes (author)
Uppsala universitet,Institutionen för medicinska vetenskaper
Henrohn, Dan (author)
Uppsala universitet,Institutionen för farmaceutisk biovetenskap,Institutionen för medicinska vetenskaper
Bertilsson, Maria (author)
Uppsala universitet,Uppsala kliniska forskningscentrum (UCR)
Melhus, Håkan (author)
Uppsala universitet,Klinisk farmakogenomik och osteoporos
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 (creator_code:org_t)
2013-05-17
2013
English.
In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:5, s. e62401-
  • Journal article (peer-reviewed)
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  • Background: Appropriateness of prescribing can be assessed by various measures and screening instruments. The aims of this study were to investigate the effects of pharmacists' interventions on appropriateness of prescribing in elderly patients, and to explore the relationship between these results and hospital care utilization during a 12-month follow-up period. Methods: The study population from a previous randomized controlled study, in which the effects of a comprehensive pharmacist intervention on re-hospitalization was investigated, was used. The criteria from the instruments MAI, STOPP and START were applied retrospectively to the 368 study patients (intervention group (I) n = 182, control group (C) n = 186). The assessments were done on admission and at discharge to detect differences over time and between the groups. Hospital care consumption was recorded and the association between scores for appropriateness, and hospitalization was analysed. Results: The number of Potentially Inappropriate Medicines (PIMs) per patient as identified by STOPP was reduced for I but not for C (1.42 to 0.93 vs. 1.46 to 1.66 respectively, p<0.01). The number of Potential Prescription Omissions (PPOs) per patient as identified by START was reduced for I but not for C (0.36 to 0.09 vs. 0.42 to 0.45 respectively, p<0.001). The summated score for MAI was reduced for I but not for C (8.5 to 5.0 and 8.7 to 10.0 respectively, p<0.001). There was a positive association between scores for MAI and STOPP and drug-related readmissions (RR 8-9% and 30-34% respectively). No association was detected between the scores of the tools and total re-visits to hospital. Conclusion: The interventions significantly improved the appropriateness of prescribing for patients in the intervention group as evaluated by the instruments MAI, STOPP and START. High scores in MAI and STOPP were associated with a higher number of drug-related readmissions.

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