Purpose: To investigate the contributors to self-rated health in people with late-stage Parkinson's disease (PD) and cognitive impairment. Methods: A secondary analysis of baseline data from the international Care of Late-Stage Parkinsonism (CLaSP) cohort study was conducted. Participants with PD and either dementia or mild cognitive impairment or MMSE < 24/30 in the absence of major depression were included if...