The relevance of a geriatric sub-classification of personality disorders in the DSM-V.

Little is known about the course of personality disorders across the life span. A major problem is that the current DSM nosology for personality disorders does not account for age-associated changes in behaviour and interpersonal functioning. This editorial will discuss the main diagnostic bottlenecks when applying the current DSM-IV-TR Axis II criteria to older adults. Subsequently, suggestions will be given for future research and the development of a geriatric sub-classification.