Introduction Supporting dementia caregivers is essential for improving patient outcomes and reducing caregiver burden, and it has become a core element of comprehensive dementia care. Accurate assessment of caregivers’ support needs is crucial for designing effective and targeted interventions. Although several instruments have been developed to assess these needs, there is limited evidence from systematic reviews regarding their measurement properties. Conducting a systematic review of the psychometric evidence for these instruments is therefore necessary to inform the selection and application of reliable tools in both research and practice. This review aims to identify and evaluate existing instruments for measuring support needs among dementia caregivers, summarise their psychometric properties and provide evidence-based recommendations for their use and future development. Methods and analysis This protocol follows the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Protocols 2015 guidelines. A comprehensive search will be conducted in eight electronic databases from 1 August 2025 to 31 January 2026 to identify studies reporting the development or use of instruments measuring support needs among dementia caregivers. Two reviewers will independently perform literature screening, data extraction and methodological quality assessment, with disagreements resolved by discussion or consultation with a third reviewer. The measurement properties of the included instruments will be appraised in accordance with the Consensus-based Standards for the Selection of Health Measurement Instruments methodology. Ethics and dissemination Ethical approval is not required for this study as it will use data from previously published literature. The results of this systematic review will be disseminated through presentations at national and/or international conferences and publication in a peer-reviewed journal. PROSPERO registration number CRD420251129741.
Xiang et al. (Thu,) studied this question.