A meta-analytic approach was used to review the literature for trends
concerning the frequency and distribution of personality disorder symp
tomatology in older adults, and to consider implications for future in
vestigation. Eleven articles published from 1980 through 1994 met the
study criteria: (1) Personality disorder diagnoses based upon DSM-III
or DSM-III-R criteria; (2) original data reported in the study; (3) su
fficient information reported so that meta-analytic procedures could b
e followed; (4) a focus upon older adults (age 50 and above) by the st
udy or a clearly measurable older group within the study; and (5) asse
ssment of personality disorders that included the full spectrum of dis
orders. Overall, the prevalence of personality disorders in this age g
roup was 10%. The frequency of personality disorders in the individual
studies included in the analysis ranged from 6% in a sample of geriat
ric patients treated for depression to 33% in a separate sample of rec
overed elderly depressives. Emerging most clearly was the need for wel
l-designed studies to develop a statistically robust sample for furthe
r analysis.