Hallucinations are classically associated with psychotic disorders. Recent
research, however, has highlighted that hallucinations frequently occur
outside of the context of psychosis. Despite this, to our knowledge, there
has been no epidemiological research to compare the prevalence of
hallucinations across common mental disorders with the prevalence in
borderline personality disorder (BPD). Using data from the Adult Psychiatric
Morbidity Survey (n = 7403), we investigated the prevalence
of hallucinations in individuals with a range of mental disorders and BPD.
Hallucinations were prevalent in all disorders (range 11–24%).
Hallucinations were no more prevalent in individuals with BPD (13.7%) than
in individuals with a (non-psychotic) mental disorder (12.6%) (χ2
= 0.03, P = 0.92).