Out-patient psychotherapy for borderline personality disorder: Cost-effectiveness of schema-focused therapy v. transference-focused psychotherapy

Abstract

BackgroundSchema-focused therapy (SFT) and transference-focused psychotherapy (TFP) for borderline personality disorder were recently compared in a randomised multicentre trial.AimsTo assess the societal cost-effectiveness of SFT v. TFP in treating borderline personality disorder.MethodCosts were assessed by interview. Health-related quality of life was measured using EQ-5D. Outcomes were costs per recovered patient (recovery assessed with the Borderline Personality Disorder Severity Index) and costs per quality-adjusted life-year (QALY).ResultsMean 4-year bootstrapped costs were $37826 for SFT and $46 795 for TFP (95% uncertainty interval for difference −21 775 to 3546); QALYs were 2.15 for SFT and 2.27 for TFP (95% UI −0.51 to 0.28). The percentages of patients who recovered were 52% and 29% respectively. The SFT intervention was less costly and more effective than TFP (dominant), for recovery; it saved $90457 for one QALY loss.ConclusionsDespite the initial slight disadvantage in QALYs, there is a high probability that compared with TFP, SFT is a cost-effective treatment for borderline personality disorder.