The burden of personality disorder: a district-based survey.

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Abstract
Patients with a clinical diagnosis of personality disorder (PD) often suffer prolonged distress. They are a considerable burden on psychiatric services and they are experienced as difficult to manage by their keyworkers. This paper describes the creation of a community-based case register of patients suffering from PD. It explores the relationship between psychological distress, personality dysfunction, service utilisation and keyworker stress. Mental Health workers were asked to identify those patients on their caseload whose primary problem was PD. This list provided the basis for the case register. Patients completed the revised Personality Diagnostic Questionnaire IV (PDQ 4); the General Health Questionnaire (GHQ); and the Beck Depression Inventory - 21 item (BDI). A brief, semi-structured interview was conducted by Community Psychiatric Nurses to estimate service utilisation and keyworker stress. The mean GHQ was 14.58; the mean BDI score was 28.22. The mean number of PDs per patient was 4.5. One quarter of patients (21/80) had been admitted at least once to a psychiatric ward in the previous year and 17% (13/80) had presented to casualty at least once in the previous two months. 57% of the patients had weekly or more contacts with a helping agency. The number of PD diagnoses per patient as measured by the PDQ 4 was not found to be predictive of stress experienced by CPNs, whereas high BDI and GHQ scores were strongly correlated. Similarly, the number of admissions to a psychiatric ward was associated with high BDI and GHQ scores but not with number of PDs per patient. It is feasible to establish a case register of all patients in the district with PD. There are high levels of depression and distress amorsgst patients with PD being treated as outpatients. Service utilisation and keyworker stress are not predicted by number of PDs per patient but are strongly associated with distress as measured by the GHQ and BDI, The implications of these findings are discussed.