Clin Psychopharmacol Neurosci.  2019 Aug;17(3):369-376. 10.9758/cpn.2019.17.3.369.

Validation of the Korean Version of the Depression in Old Age Scale and Comparison with Other Depression Screening Questionnaires Used in Elderly Patients in Medical Settings

Affiliations
  • 1Department of Psychiatry, Jeju National University School of Medicine, Jeju, Korea. mdkim66@jejunu.ac.kr
  • 2Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul, Korea. wmbahk@catholic.ac.kr
  • 3Department of Psychiatry, School of Medicine, Konkuk University, Chungju, Korea.
  • 4Department of Psychiatry, Bongseng Memorial Hospital, Busan, Korea.
  • 5Department of Psychiatry, Gumi CHA Medical Center, CHA University, Gumi, Korea.
  • 6Department of Psychiatry, Cancer Center, Dongnam Institute of Radiological & Medical Sciences, Busan, Korea.
  • 7Department of Psychiatry, Naju National Hospital, Naju, Korea.
  • 8Department of Psychiatry, Soonchunhyang University Cheonan Hospital, Cheonan, Korea.

Abstract


OBJECTIVE
The Depression in Old Age Scale (DIA-S) is a new screening tool for assessing depression in the elderly. The primary aims of this study were to describe the validation of the Korean version of the DIA-S (K-DIA-S) and to compare its validity with that of other depression screening questionnaires used in elderly outpatients in medical settings.
METHODS
A total of 385 elderly outpatients completed the K-DIA-S and underwent the Mini International Neuropsychiatric Interview to diagnose depressive disorders. Other measures included the 15-item short form of the Geriatric Depression Scale (SGDS), the 9-item depression module of the Patient Health Questionnaire (PHQ-9), and the Montgomery-Asberg Depression Rating Scale (MADRS). Reliability and validity tests, an optimal cutoff point estimate, and receiver operating characteristic curve analysis were performed to investigate the diagnostic validity of the K-DIA-S. Areas under the curves (AUCs) for the K-DIA-S, SGDS, and PHQ-9 were compared statistically.
RESULTS
The K-DIA-S showed good internal consistency and strong correlations with the SGDS (r = 0.853), PHQ-9 (r = 0.739), and MADRS (r = 0.772). The cut-off point of the K-DIA-S that can be recommended for screening depressive symptoms was a score of 4. For "any depressive disorder", the AUC (standard error) for the K-DIA-S was 0.896 (0.015), which was significantly larger than that for the PHQ-9 (p = 0.033).
CONCLUSION
The present findings suggest that the K-DIA-S has good psychometric properties and is a valid and reliable tool for assessing depressive symptoms in elderly populations and medically ill patients.

Keyword

Depression in Old Age Scale (DIA-S); Korean; Elderly; Depressive disorder; Validation

MeSH Terms

Aged*
Area Under Curve
Depression*
Depressive Disorder
Humans
Mass Screening*
Outpatients
Psychometrics
Reproducibility of Results
ROC Curve
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