Objectives: To investigate the characteristics of the caregiving experience according to age at onset of dementia to adapt support programmes. Method: Fifty-seven spouse caregivers of persons with early-onset dementia (PEOD) and 93 spouse caregivers of persons with late-onset dementia (PLOD) participated. The characteristics of the caregiving experience were assessed using questionnaires. The authors compared the two groups according to age at onset of the disease using a multivariate test, Pillai's Trace test.