Which patient groups have the highest prevalence of borderline personality disorder (BPD)?

Updated: Nov 05, 2018
  • Author: Roy H Lubit, MD, PhD; Chief Editor: Caroly Pataki, MD  more...
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Symptoms of BPD are usually present by late adolescence, but the diagnosis has been made in children. The initial diagnosis is rarely made in patients older than 40 years. The incidence of the disorder tends to decrease after age 40 years, partly because personality disorders often decrease with age and partly because some who have the disorder commit suicide and thus are no longer part of the population.

Virtually every study of borderline personality disorder has revealed that the diagnosis is more common in females than in males; [18] the female-to-male ratios are as high as 4:1. [19] No evidence suggests a relationship between race and the diagnosis of BPD or borderline disorders of childhood.

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