Background: Palliative care for older people with life-limiting diseases often involves informal caregivers, but the palliative care literature seldom focuses on the negative and positive aspects of informal caregiving.; Objective: To assess the association of proximity to end of life (EOL) and dementia caregiving with informal caregivers' burden of care and positive experiences and explain differences in outcomes.; Design: Data on 1267 informal caregivers of community-dwelling older people were selected from a nationally representative cro