Abstract
Early anecdotal reports and community epidemiologic studies on the prevalence of personality disorders in late life indicate that although these disorders exist in late life, prevalence is lower than in younger adults. More recent empirical studies have also indicated that the prevalence of personality disorders in older adults is lower than in young adults, although both cohorts demonstrate a similar variance in rates across treatment settings. Inpatient and outpatient psychiatric samples reveal prevalence rates four- to fivefold greater than community samples across all ages It is not clear, however, whether the findings of a decline in the rates of personality disorder in late life represent a true age effect, or rather reflect methodologic flaws that fail to take into account geriatric variants in the presentation of personality disorder. Future DSM classification for personality disorders may need to utilize more age-neutral diagnostic criteria in order to increase the validity of studies that attempt to measure the prevalence of personality disorders across age cohorts.
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