Psychopathology and health-related quality of life as patient-reported treatment outcomes: evaluation of concordance between the Brief Symptom Inventory (BSI) and the Short Form-36 (SF-36) in psychiatric outpatients.

Although (mental health) scores on both instruments are associated, adding the SF-36 in addition to the BSI in treatment evaluation research produces valuable information as the SF-36 measures a broader concept and contains physical/functional component scales, resulting in a more complete clinical picture of individual patients.