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Use of rating scales to measure outcomes of depression treatment is thought to improve both treatment process and outcomes and eventually might be required for accreditation and payment. Recommendations for specific measures have focused on response (≥50% improvement) and remission (symptoms in normal range). To compare the clinical utility of various outcome measures, researchers analyzed electronic records from two large integrated health systems.
The investigators tracked ratings on the nine-item Patient Health Questionnaire (PHQ-9) in 5554 patients initiating psychotherapy and the association between these ratings and depression severity on four measures of outcome — response, remission (PHQ-9, <5), an effect size (change divided by meas…