User involvement in ageing and health research: a survey of researchers' and older adults' perspectives.

Ageing and health researchers involve users in their research to improve quality and ensure relevance, but there is no consensus among them whether users should be involved in publicly funded research. While several challenges were identified, training, institutional support and resources from funders could alleviate many of these. Findings reveal significant differences in attitudes between older adults in the general population and researchers. Further research with comparable larger samples is needed to confirm and understand the possible consequences such controversy might have and how to solve them. IRRID (International Registered Report Identifier): RR2-10.2196/17759.