1 Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, Québec, Canada; Département de psychologie, Université de Montréal, Montréal, Québec, Canada. Electronic address: sylvie.belleville@umontreal.ca.
2 Rotman Research Institute, Baycrest Academy for Research & Education, Toronto, Ontario, Canada; Departments of Psychology and Psychiatry, University of Toronto, Toronto, Ontario, Canada.
3 Centre de recherche de l'Institut universitaire de gériatrie de Montréal, Montréal, Québec, Canada; Département de médecine, Université de Montréal, Montréal, Québec, Canada; Montreal Heart Institute, Montréal, Québec, Canada.
4 Department of Medicine, University of Alberta, Edmonton, Alberta, Canada; Neuroscience and Mental Health Institute, Edmonton, Alberta, Canada.
5 Département de psychologie, Université de Montréal, Montréal, Québec, Canada; Center for Advanced Research in Sleep Medicine (CARSM), Hôpital du Sacré-Coeur de Montréal, Montréal, Québec, C

Background: Online educational programs focused on ways to improve brain health could increase participant literacy, empowerment, and engagement in activities that support personal brain health, potentially reducing dementia risk.

Objectives: Our goal was to develop an evidence-based online educational program with a focus on risk and protective factors for dementia. Here we present the rationale and features of the program and include results from a pilot study that assessed usability and acceptability.

Design: This project is part of the Can-Thumbs UP (CTU) initiative. An Intervention Mapping Approach framework and co-construction approach was used to develop the online program. A pre-post pilot open label design was used to test the usability and acceptance of this at-home educational program.

Setting: The program and assessment for the pilot study were delivered fully remotely.

Participants: Twenty community-dwelling older adults (60-83 years of age, 65 % female) living in Canada who were at increased risk of dementia.

Program: The Brain Health PRO/Santé Cerveau PRO is a web-based 45-week program available in French and English. It provides general information and guidance on seven modifiable risk factors for dementia: physical activity, nutrition, cognitively stimulating activities, sleep, social and psychological health, vascular health, and vision/hearing. After completing a brief intake questionnaire, users are provided with an individualized risk profile to personalize priorities and goals. During the course of the program, users receive feedback on lifestyle changes. For this pilot study, participants completed a 15-week version of the program.

Measurements: This pilot study reports measures of usability (System Usability Scale), acceptance (Technology Acceptance Model-2) as well as risk profiles at intake based on self-reported questionnaires.

Results: Two logic models were developed to identify the determinants of risk for dementia and how these could be targeted by the program. A review of dementia risk and protective factors and online educational programs for older adults, as well as co-creation activities with experts, stakeholders, and citizen advisors, were used to identify the determinants, target, format, and content of the program. The pilot study reports excellent usability and acceptance with scores of 80.4/100 and 93.5/120 respectively.

Conclusion: Intervention mapping and co-construction approaches facilitated the design of a program that effectively balances the delivery of scientific content with the specific constraints, needs and abilities of older adults.

Trial registration: NCT05347966.