Trial-based Effectiveness and Cost-effectiveness of the Partner in Balance Intervention

Rationale: Informal care is one of the most important sources of care for dependent elderly people. The Partner in Balance (PIB) intervention aims to prepare and support informal caregivers for their caregiving tasks. Long-term cost-effectiveness evidence is required to support reimbursement decision-making on this PIB program. The investigators hypothesize that 1) caregiver self-efficacy in intervention arm PiB is higher compared to the control arm of usual care; 2) care costs of participants in intervention arm are lower compared to the control arm of usual care. Objectives: The investigators aim to answer the following research questions: * What is the effect of PiB on caregiver self-efficacy compared to usual care? * What is the effect of PiB on caregiver and person with dementia total care costs compared to usual care? * What is the incremental cost-utility ratio of PiB compared to usual care? * What is the annual budget impact of PiB compared to usual care? Study design: Pragmatic, cluster randomised controlled trial. Study population: Informal caregivers of people with early-stage dementia who are community-dwelling and are receiving little or no dementia-related formal ADL-care Intervention: blended E-health informal caregiver support program with online psycho-education and behavioural modelling. It contains personalized goal setting, online modules with option for online communication with care professional, evaluation with care professional. Main study parameters/endpoints: Primary: self-efficacy. Cost-utility: EQ5D, RUD. Secondary: quality-of-life, caregiver burden Data collection: Measurements consist of questionnaires (total duration is approximately 1 hour; administered at home, via telephone, via email or other location if preferred by the participant; take place at baseline, 3, 6, 12 and 24 months).