Measuring Subclinical Disability in Older Mexican Americans

Bibliographic Data

ID19306472
AuthorsHelen P Hazuda (0000-0002-7313-4160, The University of Texas at San Antonio Health Science Center), Meghan B Gerety (The University of Texas at San Antonio Health Science Center), Shuko Lee (0000-0002-4286-4152, The University of Texas at San Antonio Health Science Center), Cynthia D Mulrow (0000-0002-4768-4492, The University of Texas at San Antonio Health Science Center), MICHAEL J LICHTENSTEIN (The University of Texas at San Antonio Health Science Center)
Year2002
Volume64
Issue3
Pages520-530
Publication date2002-05-01
Peer ReviewedYes
Open AccessNo
TypeARTICLE
VenuePsychosomatic Medicine (JOURNAL)
Journal identifiersISSN: 0033-3174 • E-ISSN: 1534-7796
PublisherOvid Technologies (Wolters Kluwer Health) (PUBLISHER)
DOI10.1097/00006842-200205000-00017
PMID12021426
OpenAlexW2070251616
LanguageEN
Citations received4
References cited14

OBJECTIVE: The purpose of this study was to develop a comprehensive list of adaptive strategies to prevent disability and use this information to devise a preliminary measure of subclinical disability (state of sustained independence in the presence of latent or manifest functional limitations) suitable for older Mexican Americans. METHOD: Semistructured interviews were conducted with 24 community-dwelling Mexican American elders (> or =65 years old) to elicit information about adaptations in performance of daily living tasks (eg, walking, dressing, and shopping) that may indicate presence of subclinical disability. This information was used to construct a quantitative self-report measure of subclinical disability administered to 207 older Mexican Americans. Item and factor analyses were performed to reduce the number of items and establish their underlying structure. Construct and discriminant validity of the reduced instrument was determined. RESULTS: A framework comprised of nine categories of daily living tasks, three functional levels, and five adaptation types was generated from the qualitative data. The initial 133-item measure (named the ADAPT) was reduced to a 44-item scale with three subscales (physical, household, and social). ADAPT scores correlated significantly in the expected direction with standard functional status measures, but the shared variance was modest, indicating that the ADAPT captured substantial, unique variance. Mean ADAPT scores differed significantly and were monotonically lower across subgroups classified as independent, subclinically disabled, and disabled, respectively. CONCLUSIONS: The ADAPT seems to have construct and discriminant validity as a measure of subclinical disability. Additional research is required to determine sensitivity to change and clinically significant cut points for varying risk of frank disability

Activities of daily living · Adaptation (eye) · Construct (python library) · Construct validity · Developmental psychology · Discriminant validity · Psychiatry · Psychometrics · Subclinical infection · Balance, Gait, and Falls Prevention · Clinical Psychology · Computer Science · Frailty in Older Adults · Health disparities and outcomes · Medicine · Psychology · Gerontology

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