
Psychiatr Serv 57:829-837, June 2006
doi: 10.1176/appi.ps.57.6.829
© 2006 American Psychiatric Association
Comparison of Self-Report and Clinician Ratings on Two Inventories of Depressive Symptomatology
A. John Rush, M.D.,
Thomas J. Carmody, Ph.D.,
Hisham M. Ibrahim, M.D.,
Madhukar H. Trivedi, M.D.,
Melanie M. Biggs, Ph.D.,
Kathy Shores-Wilson, Ph.D.,
M. Lynn Crismon, Pharm.D.,
Marcia G. Toprac, Ph.D. and
T. Michael Kashner, Ph.D., J.D.
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 score. 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-SR-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.
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F. F. Duffy, H. Chung, M. Trivedi, D. S. Rae, D. A. Regier, and D. J. Katzelnick
Systematic Use of Patient-Rated Depression Severity Monitoring: Is It Helpful and Feasible in Clinical Psychiatry?
Psychiatr Serv,
October 1, 2008;
59(10):
1148 - 1154.
[Abstract]
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