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The effects of pharmacist intervention on emergency department visits in patients 80 years and older: subgroup analyses by number of prescribed drugs and appropriate prescribing
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Klinisk farmakogenomik och osteoporos.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Farmaceutiska fakulteten, Institutionen för farmaceutisk biovetenskap.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR). Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Kardiologi.ORCID-id: 0000-0003-2247-8454
Vise andre og tillknytning
2014 (engelsk)Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 9, nr 11, s. e111797-Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background: Clinical pharmacist interventions have been shown to have positive effect on occurrence of drug-related issues as well as on clinical outcomes. However, evidence about which patients benefiting most from the interventions is limited. We aimed to explore whether pharmacist intervention is equally effective in preventing emergency department (ED) visits in patients with few or many prescribed drugs and in those with different levels of inappropriate prescribing. Methods: Patient and outcome data from a randomized controlled trial exploring the clinical effects of a ward-based pharmacist intervention in patients, 80 years and older, were used. The patients were divided into subgroups according to the number of prescribed drugs (< 5 or >= 5 drugs) and the level of inappropriate prescribing [using the Screening Tool Of Older People's potentially inappropriate Prescriptions (STOPP) and the Screening Tool to Alert doctors to Right Treatment (START) with a score of >= 2 (STOPP) and >= 1 (START) as cutoff points]. The effect of the intervention on the number of times the different subgroups visited the ED was analyzed. Results: The pharmacist intervention was more effective with respect to the number of subsequent ED visits in patients taking < 5 drugs on admission than in those taking >= 5 drugs. The rate ratio (RR) for a subsequent ED visit was 0.22 [95% confidence interval (CI) 0.09-0.52] for,5 drugs and 0.70 (95% CI 0.47-1.04) for >= 5 drugs (p = 0.02 for the interaction). The effect of intervention did not differ between patients with high or low STOPP or START scores. Conclusion: In this exploratory study, the pharmacist intervention appeared to be more effective in preventing visits to the ED for patients who were taking fewer drugs before the intervention. Our analysis of STOPP and START scores indicated that the level of inappropriate prescribing on admission had no effect on the outcomes of intervention with respect to ED visits.

sted, utgiver, år, opplag, sider
2014. Vol. 9, nr 11, s. e111797-
Emneord [en]
clinical pharmacy, medication review, inappropriate prescribing, polypharmacy, geriatrics
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-234485DOI: 10.1371/journal.pone.0111797ISI: 000345558100122PubMedID: 25364817OAI: oai:DiVA.org:uu-234485DiVA, id: diva2:756795
Tilgjengelig fra: 2014-10-20 Laget: 2014-10-20 Sist oppdatert: 2017-12-05bibliografisk kontrollert
Inngår i avhandling
1. Improving the Quality and Safety of Drug Use in Hospitalized Elderly: Assessing the Effects of Clinical Pharmacist Interventions and Identifying Patients at Risk of Drug-related Morbidity and Mortality
Åpne denne publikasjonen i ny fane eller vindu >>Improving the Quality and Safety of Drug Use in Hospitalized Elderly: Assessing the Effects of Clinical Pharmacist Interventions and Identifying Patients at Risk of Drug-related Morbidity and Mortality
2014 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Older people admitted to hospital are at high risk of rehospitalization and medication errors. We have demonstrated, in a randomized controlled trial, that a clinical pharmacist intervention reduces the incidence of revisits to hospital for patients aged 80 years or older admitted to an acute internal medicine ward. The aims of this thesis were to further study the effects of the intervention and to investigate possibilities of targeting the intervention by identifying predictors of treatment response or adverse health outcomes.

The effect of the pharmacist intervention on the appropriateness of prescribing was assessed, by using three validated tools. This study showed that the quality of prescribing was improved for the patients in the intervention group but not for those in the control group. However, no association between the appropriateness of prescribing at discharge and revisits to hospital was observed.

Subgroup analyses explored whether the clinical pharmacist intervention was equally effective in preventing emergency department visits in patients with few or many prescribed drugs and in those with different levels of inappropriate prescribing on admission. The intervention appeared to be most effective in patients taking fewer drugs, but the treatment effect was not altered by appropriateness of prescribing.

The most relevant risk factors for rehospitalization and mortality were identified for the same study population, and a score for risk-estimation was constructed and internally validated (the 80+ score). Seven variables were selected. Impaired renal function, pulmonary disease, malignant disease, living in a nursing home, being prescribed an opioid and being prescribed a drug for peptic ulcer or gastroesophageal reflux disease were associated with an increased risk, while being prescribed an antidepressant drug (tricyclic antidepressants not included) was linked with a lower risk. These variables made up the components of the 80+ score. Pending external validation, this score has potential to aid identification of high-risk patients.

The last study investigated the occurrence of prescription errors when patients with multi-dose dispensed (MDD) drugs were discharged from hospital. Twenty-five percent of the MDD orders contained at least one medication prescription error. Almost half of the errors were of moderate or major severity, with potential to cause increased health-care utilization. 

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2014. s. 65
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine, ISSN 1651-6206 ; 1049
Emneord
Adverse drug events, inappropriate prescribing, medication errors, polypharmacy, medication reconciliation, medication review, patient drug counseling, multi-dose dispensed drugs, risk-estimation, multiprofessional collaboration, prediction model, quality measure, rehospitalization
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-234488 (URN)978-91-554-9088-1 (ISBN)
Disputas
2014-12-11, Aula Gunnesalen, Ingång 10, Akademiska sjukhuset, Uppsala, 09:15 (engelsk)
Opponent
Veileder
Tilgjengelig fra: 2014-11-19 Laget: 2014-10-20 Sist oppdatert: 2018-01-11

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