Rossum, B. van

treatment patient psychotherapy personality disorder health study hospital personality disorders cluster inpatient personality disorder day hospital group outpatient day hospital psychotherapy score outcome value therapy cluster b pd psychiatry state patient-year model level result cost-effectiveness propensity month strategy effect research clinician inpatient treatment trial psychother variable change patient characteristics follow-up baseline characteristic health state psychosom table intake clinicians perspective parameter quality effectiveness modalitie health states threshold method symptom out-patient probability analysis problem option difference outpatient psychotherapy intake threshold values pattern out-patient psychotherapy propensity score decision measure analyses inpatient psychotherapy center busschbach jjv netherland verheul r population cluster c pd switch points sample