Frequency of personality disorders in two age cohorts of psychiatric inpatients.
OBJECTIVE
The authors examined the frequency of DSM-III-R personality disorders in adolescent and young adult psychiatric inpatients.


METHODS
Structured diagnostic interviews were reliably performed with a series of 255 consecutively admitted inpatients (138 adolescents and 117 young adults).


RESULTS
Most personality disorders were diagnosed in similar frequencies in the two study groups. Passive-aggressive personality disorder was diagnosed with lower frequency and dependent personality disorder with higher frequency in the young adult than in the adolescent group.


CONCLUSIONS
The isomorphism of relative frequencies among psychiatric inpatients suggests that what is seen in adolescents are valid forms of most adult personality disorders.
Grilo
C M
CM
Yale Psychiatric Institute, New Haven, CT 06520, USA.
McGlashan
T H
TH
Quinlan
D M
DM
Walker
M L
ML
Greenfeld
D
D
Edell
W S
WS
D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D015897:Comorbidity; D003859:Dependent Personality Disorder / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000453:epidemiology*; D010324:Passive-Aggressive Personality Disorder / Q000175:diagnosis / Q000453:epidemiology; D010554:Personality Disorders / Q000175:diagnosis / Q000453:epidemiology*; D015995:Prevalence; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data