Relationship of Self-reported and Performance-based Visual Function With Performance-based Measures of Physical Function: The Health ABC Study.

Autor:	Thompson AC; Department of Surgical Ophthalmology, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA.; Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA., Miller ME; Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA.; Division of Public Health Sciences, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA., Webb CC; Department of Surgical Ophthalmology, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA.; Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA., Williamson JD; Department of Surgical Ophthalmology, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA.; Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA., Kritchevsky SB; Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston Salem, North Carolina, USA.
Jazyk:	angličtina
Zdroj:	The journals of gerontology. Series A, Biological sciences and medical sciences [J Gerontol A Biol Sci Med Sci] 2023 Oct 28; Vol. 78 (11), pp. 2060-2069.
DOI:	10.1093/gerona/glac225
Abstrakt:	Background: To assess the relationship between self-reported and performance-based visual impairment (VI) and lower extremity physical function. Methods: Cross-sectional analysis of 2 219 Health ABC participants who completed vision testing and the Short Physical Performance Battery (SPPB). Linear regression models used either self-reported (weighted visual function question [VFQ] score) or performance-based (visual acuity [VA], log contrast sensitivity [LCS], Frisby stereoacuity [SA]) to predict SPPB or its components-gait speed, chair stands, or standing balance-with and without covariate adjustment. Results: Mean age was 73.5 years (range 69-80); 52.4% were female and 37.4% African American. All VI measures were strongly associated with SPPB in unadjusted and adjusted models (p < .001). A self-reported VFQ score 1 standard deviation lower than the mean (mean 87.8 out of 100) demonstrated a -0.241 (95% confidence interval [CI]: -0.325, -0.156) adjusted difference in SPPB. After controlling for covariates, VA of <20/40 (41%) demonstrated a -0.496 (-0.660, -0.331) lower SPPB score while SA score>85 arcsec (30%) had a -0.449 (-0.627, -0.271) adjusted SPPB score versus those with better visual function. LCS < 1.55 (28.6%) was associated with a -0.759 (-0.938, -0.579) lower and LCS ≤ 1.30 (8%) with a -1.216 (-1.515, -0.918) lower adjusted SPPB score relative to better LCS. In a final multivariable model containing multiple vision measures, LCS remained independently associated with SPPB and all components, while SA remained associated with balance (all p < .05). Conclusions: Both self-reported and performance-based VI are strongly associated with poor lower extremity physical function. These findings may identify a subgroup of older adults with co-existing visual and physical dysfunction who may benefit from targeted screening and intervention to prevent disability. (© The Author(s) 2022. Published by Oxford University Press on behalf of The Gerontological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
Databáze:	MEDLINE
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