Forest plot for odds ratios of the selected list of neuropsychiatric comorbidities for dementia with Lewy bodies compared with Alzheimer’s disease as the reference group in different three conditions. (A) Overall assessment (regardless of the timing). (B) Comorbidities recorded prior to the diagnosis of dementia as a risk factor for type of dementia (DLB vs. AD). (C) Type of dementia (DLB vs. AD) as a risk factor for comorbidities occurred after the diagnosis of dementia. AD, Alzheimer’s disease; CI, confidence interval; DLB, dementia with Lewy bodies.