Personality Disorder Traits: Prevalence and Effects on Health Status in Primary Care Patients

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Abstract
Objective: Previous work in an academic setting has found that scoring in the higher ranges for selected personality disorders on an objective assessment tool was associated with increases in psychiatric co-morbidities, decreased satisfaction with health care, and diminished health related functional status. This study examines how often patients in primary care practices exhibit traits consistent with these selected disorders and what impact this has on their health related functional status and use of health care resources. Methods: Thirteen family practices agreed to distribute questionnaires to 50 consecutive patients in the spring of 1997. Questionnaires contained instruments that assess risk for personality disorders, health related functional status, health resource use, demographics, and depression. The relationships between four specific personality disorders (borderline, dependent, schizoid and schizotypal) and other assessed variables were explored. Results: Of the 250 patients returning completed survey instruments, 80 (32%) scored in the high range for traits consistent with one of the four target personality disorders. Patients in the high risk group also were noted to have more outpatient, emergency, and inpatient visits in the previous six months. Those in the high risk group also had significantly lower scores on seven of eight measures of health related functional status. Conclusions: Patients who have several traits for borderline, dependent, schizoid, and schizotypal personality disorders are common in primary care practices. These patients utilize services at higher rates than others and are more likely to screen in the positive range for depressive symptoms and have overall lower health related functional status.