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J Geriatr Psychiatry Neurol. 2016 Nov;29(6):361-368. doi: 10.1177/0891988716666376. Epub 2016 Sep 21.

Convergent Validity, Concurrent Validity, and Diagnostic Accuracy of the interRAI Depression Rating Scale.

Author information

1
1 University of Auckland, Auckland, New Zealand.
2
2 University of Otago, Dunedin, New Zealand.
3
3 Auckland District Health Board, Auckland, New Zealand.
4
4 Canterbury District Health Board, Christchurch, New Zealand.

Abstract

AIMS:

Depression Rating Scale (DRS) is one of the clinical outcome measures of the International Resident Assessment Instrument (interRAI) assessment. The primary aim of this study is to investigate the diagnostic accuracy and concurrent validity of the 3-day assessment window version of the DRS.

METHODS:

The performance of DRS was compared with a gold standard clinical diagnosis of depression in 92 patients (age ≥65) who had interRAI version 9.1 Home Care assessment completed within 30 days of discharge from psychogeriatric inpatient care or memory clinic assessment.

RESULTS:

The DRS had poor diagnostic accuracy for depression diagnosis with an area under the curve of 0.68 (95% confidence interval [CI] = 0.57-0.77). The DRS score had a poor to moderate correlation with the Health of the Nation Outcome Scale 65+ depression item score ( rs = 0.30, 95% CI = 0.09-0.48, P = .006).

CONCLUSION:

This study and the existing literature raise concerns that the DRS is not an adequate measure of depression.

KEYWORDS:

depression; elderly; geriatric assessment; interRAI Home Care; validation studies

PMID:
27647789
DOI:
10.1177/0891988716666376

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