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What is the most common cause of psychotic symptoms in the elderly people?

According to a 2024 review in *Psychiatry and Clinical Neurosciences*, psychotic symptoms occur in a significant percentage of individuals with dementia. Among the elderly, the single most common cause of psychotic symptoms is dementia-related psychosis, which involves hallucinations and delusions occurring in individuals with neurocognitive disorders. This is distinct from primary psychiatric conditions like schizophrenia that typically have an earlier onset.