OBJECTIVES: To describe the development of a codesigned complex intervention intended to prevent the risks of pressure ulcers, malnutrition, poor oral health and falls among older persons in nursing homes.

DESIGN: : Nursing homes in the municipality in southern Sweden.

PARTICIPANTS: End users (n=16) in nursing homes (n=4) codesigned the intervention together with the research group in workshops (n=4) in March-April 2022. Additionally, stakeholders (n=17) who were considered to play an important role in developing the intervention participated throughout this process. Data were analysed using reflexive thematic analysis.

RESULTS: Four workshops were conducted with end users (n=16) and 13 meetings with stakeholders (n=12) were held during the development process. The intervention aims to bridge the evidence-practice gap regarding the preventive care process of the risks of pressure ulcers, malnutrition, poor oral health and falls among older persons in nursing homes. The intervention is aimed at end users, lasts for 3 weeks and is divided into two parts. First, end users obtain knowledge on their own by following written instructions. Second, they meet, interact and discuss the knowledge acquired during part 1.

CONCLUSION: The intervention is robustly developed and thoroughly described. The study highlights the extensive process that is necessary for developing tailored complex interventions. The description of the entire development process may enhance the replicability of this intervention. The intervention needs to be tested and evaluated in an upcoming feasibility study.

TRIAL REGISTRATION NUMBER: NCT05308862.