Contextualizing evidence-based nurse-led interventions for reducing 30-day hospital readmissions using GRADE evidence to decision framework: A Delphi study

Abstract

Background: High 30-day readmission rates increase hospital costs and negatively impact patient outcomes in many healthcare systems, including Hong Kong. Evidence-based and local adaptable nurse-led interventions have not been established for reducing 30-day hospital readmissions among general medical patients in Hong Kong's public healthcare system.

Aims: The aim of this study was to select and refine evidence-based nurse-led interventions for reducing 30-day hospital readmissions among general medical patients in Hong Kong's public healthcare system using the Grading of Recommendations Assessment, Development and Evaluation (GRADE) Evidence to Decision (EtD) framework.

Methods: Eighteen local healthcare stakeholders were recruited to carry out a two-step process. In step 1, stakeholders were invited to prioritize nurse-led interventions which were supported by existing evidence and suggest important combinations of different interventions. For all interventions prioritized in step 1, step 2 involved stakeholders performing a two-round Delphi questionnaire aiming to generate consensus-based interventions appropriate to the local context. GRADE EtD framework was applied to guide the decision-making process, taking into account certainty of evidence, benefits and harms, resource use, equity, acceptability, and feasibility.

Results: Four out of eight nurse-led interventions reached a positive consensus with percentage agreement ranging from 70.6% to 82.4%. GRADE EtD criteria ratings showed that over 70% of stakeholders agreed these four interventions were probably acceptable and feasible, though the certainty of evidence was low or moderate. Half of stakeholders believed their desirable effects compared to undesirable effects were large. However, the resources required and how these nurse-led interventions might affect health inequities when implemented were uncertain. Preliminary implementation issues included high complexity of delivering multiple nurse-led intervention components, and challenges of coordinating different involved parties in delivering the interventions. Appropriate resource allocation and training should be provided to address these potential problems, as suggested by stakeholders.

Linking evidence to action: Using the GRADE EtD framework, four nurse-led interventions were recommended by healthcare stakeholders as possible strategies for reducing 30-day hospital readmissions among general medical patients in Hong Kong. To address preliminary implementation issues, nurses' role as care coordinators should also be strengthened to ensure smooth delivery of nurse-led intervention components, and to facilitate multidisciplinary collaboration during service delivery.

Keywords: Delphi technique; consensus; evidence-based nursing; hospital to home transition; internal medicine; nursing; patient readmissions.