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Validity and reliability of a shorter version of the Geriatric Depression Scale in institutionalized older Portuguese adults.

07:00 EST 3rd December 2019 | BioPortfolio

Summary of "Validity and reliability of a shorter version of the Geriatric Depression Scale in institutionalized older Portuguese adults."

Depressive symptoms are common in older adults in institutional contexts; however, there is a lack of validated measures for these settings. Identifying depressive symptoms can help clinicians to manage them and to prevent or delay their complications. This study aimed to validate the Geriatric Depression Scale (GDS) in an institutionalized sample of older adults. 493 institutionalized older people (73% women) aged 60 or over were evaluated through the GDS, the Mini International Neuropsychiatric Interview (MINI) (depression vs. no depression = 11% vs. 89%), the Geriatric Anxiety Inventory (GAI), the Positive Affect (PA) and Negative Affect (NA) Schedule, and the Satisfaction with Life Scale (SWLS). Test-retest reliability was assessed with 57 older adults. An 8-item version presented a Cronbach's alpha value of .87 with a single factor explaining its variance. The correlations ( < .01) attested the concurrent validity (
GAI:
= .76;
PA:
= -.22;
AN:
= .62;
SWLS:
= -.32). Test-retest reliability (6.51 months) was adequate ( = .52). ROC analysis ( = .82; sensitivity = 80%; specificity = 77%) and Youden index revealed a cutoff of 5/6 for the diagnosis of depression. Results support the validity and the screening capacity of a short version of GDS in institutional contexts. Short screening instruments for depressive symptoms may facilitate their identification, allowing for timely clinical interventions in institutional settings.

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Journal Details

This article was published in the following journal.

Name: Aging & mental health
ISSN: 1364-6915
Pages: 1-7

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