The effects of Digital Buddy programme on older adults' mental well-being: study protocol for a multi-centre, cluster randomized controlled trial.

This trial has been registered at ClinicalTrials.gov (NCT05553730) on 23 September 2022, https://clinicaltrials.gov/ct2/show/NCT05553730 , and all items come from the World Health Organization Trial Registration Data Set. It has been approved by the Research Ethics Committee of Tung Wah College, Hong Kong (reference number: REC2022143). The findings will be disseminated in peer-reviewed journals and presented at international conferences relevant to the subject fields.