Visual hallucinations were not clearly associated with dementia risks (HR 1.3, 95% CI 0.5–3.0), but this comparison is limited by a high degree of collinearity between visual hallucination presence and cholinesterase inhibitor use (only 3 of 17 visual hallucinators not using cholinesterase inhibitors at baseline). The gene discussed is BCHE; the disease is Hallucinations.