Burden of caring for Alzheimer's disease or dementia patients in Japan, the US, and EU: results from the National Health and Wellness Survey: a cross-sectional survey.

The caregiving burden among AD/dementia caregivers was substantial across the three regions, with similarities and differences between the West and Japan. The lower caregiving burden in Japan was potentially associated with national policies supporting long-term healthcare and institutionalized nursing care facilities for AD/dementia patients.