The experimental arm includes caregivers of the elderly with three targeted disorders (stroke, dementia, and fall-related fractures) who used the 656 Online Platform. The 656 Platform provides valuable information regarding three common ailments among the elderly, namely stroke, dementia, and fall-related fractures.

This arm includes caregivers of the elderly with three targeted disorders (stroke, dementia, and fall-related fractures) who did not use the 656 Online Platform. The 656 Platform provides valuable information regarding three common ailments among the elderly, namely stroke, dementia, and fall-related fractures.

The 656 Platform provides valuable information regarding three common ailments among the elderly, namely stroke, dementia, and fall-related fractures. Serving as an online platform, the 656 Platform incorporates a Chatbot feature that facilitates connections between local caregivers, social workers, and community members to various services. Serving as an online platform, the 656 Platform incorporates an AI Chatbot and a Live Chat feature that facilitates connections between local caregivers, social workers, and community members to various services. Apart from this, the 656 Platform offers several features that enhance its functionality and user experience, including problem-based elderly resource database, interim care solutions, exchange forum, data analytics and research, and professional knowledge and resources.

Caregiver stress was measured by Modified Caregiver Strain Index (C-M-CSI). It consists of 13 items with a total score ranging from 0 to 26. Each item is rated by a score of 0 (no), 1 (yes, sometimes) or 2 (yes, always). A higher score suggests a higher amount of strain felt by caregivers. The C-M-CSI demonstrated good psychometric properties in the Chinese population.

Preparedness for caregiving was measured by the Chinese version of Preparedness for Caregiving Scale. The scale consists of 8 items that ask careers how well prepared they believe they are for multiple domains of caregiving. Each item is rated by a five-point Likert scale from 0 (not at all prepared) to 4 (very well prepared) with a total score from 0 to 32. The scale showed good reliability and validity in the Chinese population.

Caregiver competence was measured by the Chinese version of Caregiver Competence Scale (CCS-C).The scale includes 4 items to assess the sufficiency of a caregiver's performance as administered by the caregiver. A higher score indicates a better sense of competence. The CCS-C demonstrated good psychometric properties in the Chinese caregivers.