Evaluation of the collaboration between Primary and Hospital Care in order to improve inappropriate prescription

Introduction and objectives: To evaluate the implementation of a collaborative experience between Primary (PC) and Hospital Care (HC) aimed at reducing potentially inappropriate prescribing (PIP) in patients with polypharmacy. Materials and methods: Collaborative experience including a controlled before-after intervention study, carried out in the Donostialdea Integrated Health Organization (IHO), with Bilbao Basurto IHO as control group, Osakidetza, Basque Health Service. Participant were 227 PC physicians and physicians from 7 hospital services, and patients with 5 or more drugs meeting at least one PIP criteria. The intervention consisted of communication and knowledge between professionals, PC-HC consensus, training, identification of patients at risk, medication review, evaluation and feedback. The collaboration process (agreements, consensus documents, training activities) and the change in the prevalence of PIP in polymedicated patients (using computerised health records) were evaluated. Results: A total of 21 PIP criteria and 6 recommendation documents were agreed. An analysis was performed on 15,570 PIP from OSI Donostialdea and 24,866 from the control group. The prevalence of PIP in polymedicated patients was reduced by -4.53% (95% CI: -4.71 to -4.36, P < .0001) in comparison with the control group. The before-after differences were statistically significant across the 7 services. Conclusions: PC-HC collaboration is feasible and, along with other intervention components, reduces inappropriate polypharmacy in the context of a recently integrated healthcare organisation. The collaboration process is complex and requires continuous monitoring, policy involvement, leadership that encourages health professional participation, and intensive use of information systems. (C) 2020 FECA. Published by Elsevier Espana, S.L.U. All rights reserved.