Personality disorders in the elderly compared to four younger age groups: a cross-sectional study of community residents and mental health patients.

The notion is expressed in the DSM-IV that some personality disorders (PDs) tend to remit with age whereas other types do not. This notion is supported by the literature and the study reported here. Studies published between 1951 and 2000 show that (1) in old age, PDs are prevalent both in normal subjects and to a greater extent in the mentally ill; (2) the evidence for general age-relatedness of PDs is scarce and contradictory; (3) there is evidence for specific age-relatedness of PDs in old age.