Functional Disability in Alzheimer Disease A Validation Study of the Brazilian Version of the Disability Assessment for Dementia (DAD-Br)

Functional Disability in Alzheimer Disease A Validation Study of the Brazilian Version of the Disability Assessment for Dementia (DAD-Br)

Author Bahia, Valeria Santoro Google Scholar
Carthery-Goulart, Maria Teresa Google Scholar
Novelli, Marcia Maria Pires Camargo Autor UNIFESP Google Scholar
Kato-Narita, Eliane M. Google Scholar
Areza-Fegyveres, Renata Google Scholar
Caramelli, Paulo Google Scholar
Nitrini, Ricardo Google Scholar
Institution Universidade de São Paulo (USP)
Universidade Federal de Minas Gerais (UFMG)
Universidade Federal de São Paulo (UNIFESP)
Abstract Background: the assessment of activities of daily living (ADL) is important both for the diagnosis and staging of dementia. the objective of this study was to verify the applicability and validity of the Brazilian version of the Disability Assessment for Dementia (DAD-Br).Methods: the DAD was applied to caregivers of 89 patients with probable Alzheimer disease (AD) and to 40 elderly individuals without cognitive impairment (controls). We assessed the construct validity of the scale and its diagnostic accuracy (sensitivity, specificity, and predictive value). in addition, intergroup and intragroup analyses were conducted to characterize patient performance on basic and instrumental ADL and to determine underlying deficits (initiation, planning, or effective execution).Results: AD patients and controls had mean ages of 76.4 +/- 6.9 years and 74.5 +/- 7.3 years (P = 0.08), respectively. Mean Mini-Mental State Examination scores were 17.4 +/- 5.0 and 26.1 +/- 5.1 (P < 0.001) and scores on the DAD were 68.4 +/- 19.0 and 99.8 +/- 0.9 (P < 0.001), for patients and controls, respectively. the DAD scale showed good internal consistency (Cronbach alpha = 0.77) and correlation with the Mini-Mental State Examination (r = 0.44; P < 0.001). the AD group did better on basic ADL than on instrumental ADL (P < 0.001). As expected, controls did not exhibit significant deficits on the items evaluated.Conclusion: the Brazilian version of the DAD is an adequate and reliable tool for assessing functional ability in AD patients.
Keywords activities of daily living
functional disability
Language English
Date 2010-07-01
Published in Alzheimer Disease & Associated Disorders. Philadelphia: Lippincott Williams & Wilkins, v. 24, n. 3, p. 291-295, 2010.
ISSN 0893-0341 (Sherpa/Romeo, impact factor)
Publisher Lippincott Williams & Wilkins
Extent 291-295
Access rights Closed access
Type Article
Web of Science ID WOS:000281310200012

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