Comparison of self-report and clinician ratings on two inventories of depressive symptomatology

A. John Rush, Thomas J. Carmody, Hisham M. Ibrahim, Madhukar H. Trivedi, Melanie M. Biggs, Kathy Shores-Wilson, M. Lynn Crismon, Marcia G. Toprac, T. Michael Kashner

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75 Scopus citations

Abstract

Objective: This study evaluated the concordance between the self-report and the clinician-rated versions of the Inventory of Depressive Symptomatology (IDS-30) and between the two versions of the briefer 16-item Quick Inventory of Depressive Symptomatology (QIDS-16). Methods: Data were gathered for 544 adult outpatients with psychotic (N=106) or nonpsychotic (N=438) major depressive disorder at 14 public sector mental health clinics in the Texas Medication Algorithm Project. Data for the QIDS-16 were extracted from the IDS-30. Baseline scores and scores from the final study visit at or before month 12 were analyzed. The clinician-rated and the self-report versions of each scale were compared in their identification of response to treatment and remission. Results: The average baseline IDS-SR-30 total score was 2.2 points higher (indicating greater severity) than the IDS-C-30 score; the average QIDS-SR-16 total score, was only .3 points higher than the QIDS-C-16 seorei The IDS-SR-30 and the IDS-C-30, as well as the QIDS-C-16 and QIDS-SR-16, agreed substantially in classifying response and remission for patients, regardless of whether the patients had psychotic features. None of a large number of clinical and demographic features accounted for differences between the QIDS-SM-16 and QIDS-C-16 total scores. Conclusions: Either the IDS-30 or the QIDS-16 self-report adequately assesses depressive symptom severity among public-sector outpatients with major depressive disorder. The briefer QIDS-16 may be preferred to save time and cost.

Original languageEnglish (US)
Pages (from-to)829-837
Number of pages9
JournalPsychiatric Services
Volume57
Issue number6
DOIs
Publication statusPublished - Jun 2006

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ASJC Scopus subject areas

  • Psychiatry and Mental health
  • Public Health, Environmental and Occupational Health
  • Health(social science)
  • Health Professions(all)

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