[Disease burden of borderline personality disorder: cost of illness, somatic comorbidity and mortality]. / Krankheitslast der Borderline-Persönlichkeitsstörung: Krankheitskosten, somatische Komorbidität und Mortalität.

BACKGROUND: Severe mental illnesses (SMI) are characterized by high psychosocial impairment as well as by increased somatic morbidity and mortality. The term SMI commonly includes psychotic, bipolar and severe unipolar depressive disorders but borderline personality disorder (BPD) also shows severe sequelae of the disease. MATERIAL AND METHODS: Published reviews and studies since 2010 examining disease burden of BPD, in terms of direct and indirect costs of illness, somatic comorbidity, and mortality were included. Furthermore, administrative data (clinically recorded billing data in Germany), comorbidity and mortality from a comprehensive analysis (n > 59 million, age ≥ 18 years) are reported. RESULTS: International studies reveal an increased disease burden, comorbidity, and mortality for BPD. In Germany BPD (administrative 1­year prevalence 0.34%) is associated with increased rates of somatic sequelae of trauma, hepatitis, HIV, COPD, asthma, and obesity. The estimated reduced life expectancy is 5.0-9.3 years of life lost (depending on age and sex). DISCUSSION: The burden of disease in BPD is clearly increased (cost of illness, somatic comorbidity and mortality). The increased mortality can mainly be explained by deaths as a consequence of poor physical health and associated BPD-related health behavior and only to a lesser degree by suicide. These results highlight the importance of classifying BPD as an SMI and the necessity to provide not only psychotherapeutic and psychiatric but also adequate somatic prevention and treatment. Individual improvement of everyday care as well as establishing new interdisciplinary and multiprofessional services could enhance health equality for people with BPD.