Prevalence of delusions in drug-naïve Alzheimer disease patients: A meta-analysis.

This meta-analysis calculates a 29.1% prevalence rate of delusions in AD patients. There is a trend towards increasing delusion prevalence in concordance with increasing severity of dementia. Given delusions are associated with poorer outcomes, the obtained prevalence should motivate clinicians to screen carefully for delusions. Current literature limitations warrant future studies, with sub-analyses on dementia severity, and other neurobiological factors known to influence the presence of delusions.