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- Title
Reliability and Validity of a Steadiness Score.
- Authors
Clark, Daniel O.; Callahan, Christopher M.; Counsell, Steven R.
- Abstract
To determine the internal consistency and construct and predictive validity of three survey questions regarding steadiness in a sample of community-dwelling lower-income older adults. A 6-month prospective cohort study. Community-based. Three hundred fifty-seven older adults who completed a baseline and 6-month follow-up interviewer-administered survey. These older adults received care at a single, public health system and were judged by insurance status to be of low income. Self-report measures of steadiness while walking and transferring; difficulty in mobility, activities of daily living (ADLs), and instrumental activities of daily living (IADLs); chronic illness; falls; hospitalization; and sociodemographic characteristics. The three steadiness questions showed good internal consistency (0.88); construct validity in Pearson correlations with mobility (0.57), ADL (0.53), and IADL scores (0.41); and predictive validity. With regard to predictive validity, steadiness was predictive of falls, hospitalization, and decline in ADL and IADL function over a subsequent 6-month period. Steadiness questions are a potentially valuable addition to survey research and clinical screening to identify persons with current impairment status and falls and disability risk.
- Subjects
ELDERLY poor; ACTIVITIES of daily living; HOSPITAL care; SOCIODEMOGRAPHIC factors; SURVEYS; PUBLIC health
- Publication
Journal of the American Geriatrics Society, 2005, Vol 53, Issue 9, p1582
- ISSN
0002-8614
- Publication type
Article
- DOI
10.1111/j.1532-5415.2005.53485.x