Gradient and Acceleration of Decline in Physical and Cognitive Functions in Older Adults: A Disparity Analysis.


Journal

The journals of gerontology. Series A, Biological sciences and medical sciences
ISSN: 1758-535X
Titre abrégé: J Gerontol A Biol Sci Med Sci
Pays: United States
ID NLM: 9502837

Informations de publication

Date de publication:
12 08 2022
Historique:
received: 26 08 2021
pubmed: 14 5 2022
medline: 17 8 2022
entrez: 13 5 2022
Statut: ppublish

Résumé

Substantive previous work has shown that both gait speed and global cognition decline as people age. Rates of their decline, as opposed to cross-sectional measurements, could be more informative of future functional status and other clinical outcomes because they more accurately represent deteriorating systems. Additionally, understanding the sex and racial disparity in the speed of deterioration, if any, is also important as ethnic minorities are at an increased risk of mobility disability and dementia. Data from 2 large longitudinal intervention studies were integrated. Rates of decline were derived from individual-level measures of gait speed of 400-m walk and scores on the Modified Mini Mental State Examination (3MSE). We also assessed age-associated declines and accelerations in changes across the ages represented in the studies (age range 53-90). The mean rate of decline in 400-m gait speed across individuals was 0.03 m/s per year, and multivariable analysis showed a significant acceleration in decline of -0.0013 m/s/y2 (p < .001). Both race and sex moderated the rate of decline. For global cognition, the mean rate of decline was 0.05 of a point per year on the 3MSE scale, and acceleration in the rate of decline was significant (-0.017 point/y2, p < .001), but neither sex nor race moderated the decline. Rate of decline in physical but not cognitive function appears moderated by sex and race. This finding, as well as rates and accelerations of decline estimated herein, could inform future intervention studies. NCT00017953 (Look AHEAD); NCT01410097 (Look AHEAD ancillary); NCT00116194 (LIFE).

Sections du résumé

BACKGROUND
Substantive previous work has shown that both gait speed and global cognition decline as people age. Rates of their decline, as opposed to cross-sectional measurements, could be more informative of future functional status and other clinical outcomes because they more accurately represent deteriorating systems. Additionally, understanding the sex and racial disparity in the speed of deterioration, if any, is also important as ethnic minorities are at an increased risk of mobility disability and dementia.
METHOD
Data from 2 large longitudinal intervention studies were integrated. Rates of decline were derived from individual-level measures of gait speed of 400-m walk and scores on the Modified Mini Mental State Examination (3MSE). We also assessed age-associated declines and accelerations in changes across the ages represented in the studies (age range 53-90).
RESULTS
The mean rate of decline in 400-m gait speed across individuals was 0.03 m/s per year, and multivariable analysis showed a significant acceleration in decline of -0.0013 m/s/y2 (p < .001). Both race and sex moderated the rate of decline. For global cognition, the mean rate of decline was 0.05 of a point per year on the 3MSE scale, and acceleration in the rate of decline was significant (-0.017 point/y2, p < .001), but neither sex nor race moderated the decline.
CONCLUSION
Rate of decline in physical but not cognitive function appears moderated by sex and race. This finding, as well as rates and accelerations of decline estimated herein, could inform future intervention studies.
CLINICAL TRIALS REGISTRATION NUMBER
NCT00017953 (Look AHEAD); NCT01410097 (Look AHEAD ancillary); NCT00116194 (LIFE).

Identifiants

pubmed: 35562076
pii: 6585683
doi: 10.1093/gerona/glac109
pmc: PMC9373944
doi:

Banques de données

ClinicalTrials.gov
['NCT01410097', 'NCT00116194', 'NCT00017953']

Types de publication

Journal Article Research Support, N.I.H., Extramural Research Support, U.S. Gov't, Non-P.H.S. Research Support, N.I.H., Intramural Research Support, U.S. Gov't, P.H.S.

Langues

eng

Sous-ensembles de citation

IM

Pagination

1603-1611

Subventions

Organisme : NIA NIH HHS
ID : P30 AG024827
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG066507
Pays : United States
Organisme : NHLBI NIH HHS
Pays : United States
Organisme : NCRR NIH HHS
ID : M01 RR000056
Pays : United States
Organisme : NIDDK NIH HHS
ID : U01 DK056992
Pays : United States
Organisme : VA
Pays : United States
Organisme : NIDDK NIH HHS
ID : R01 DK092237
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG049638
Pays : United States
Organisme : NIA NIH HHS
ID : U24 AG059624
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG028740
Pays : United States
Organisme : NCRR NIH HHS
ID : M01 RR001066
Pays : United States
Organisme : NCRR NIH HHS
ID : UL1 RR025758
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG072947
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG021332
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK048520
Pays : United States
Organisme : NCRR NIH HHS
ID : UL1 RR024153
Pays : United States
Organisme : NIDDK NIH HHS
ID : DK57136
Pays : United States
Organisme : NIDDK NIH HHS
ID : P30 DK046204
Pays : United States
Organisme : NINR NIH HHS
Pays : United States
Organisme : NCRR NIH HHS
ID : M01 RR002719
Pays : United States
Organisme : NIH HHS
ID : UO1AG22376
Pays : United States
Organisme : NIA NIH HHS
ID : P30 AG031679
Pays : United States
Organisme : NCRR NIH HHS
ID : UL1 RR025744
Pays : United States
Organisme : NCRR NIH HHS
ID : M01 RR000051
Pays : United States
Organisme : NIA NIH HHS
ID : 3U01AG022376-05A2S
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR000142
Pays : United States
Organisme : NCRR NIH HHS
ID : M01 RR001346
Pays : United States
Organisme : NCATS NIH HHS
ID : UL1 TR003142
Pays : United States
Organisme : CDC HHS
Pays : United States

Informations de copyright

© 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.

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Auteurs

Edward H Ip (EH)

Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.
Department of Social Sciences and Health Policy, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Shyh-Huei Chen (SH)

Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

W Jack Rejeski (WJ)

Department of Health and Exercise Science, Wake Forest University, Winston-Salem, North Carolina, USA.

Karen Bandeen-Roche (K)

Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA.

Kathleen M Hayden (KM)

Department of Social Sciences and Health Policy, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Christina E Hugenschmidt (CE)

Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

June Pierce (J)

Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Michael E Miller (ME)

Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Jaime L Speiser (JL)

Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Stephen B Kritchevsky (SB)

Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Denise K Houston (DK)

Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Robert L Newton (RL)

Population and Public Health, Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.

Stephen R Rapp (SR)

Department of Psychiatry and Behavioral Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

Dalane W Kitzman (DW)

Sections of Cardiovascular and Geriatric Medicine, Department of Internal Medicine, Wake Forest University School of Medicine, Winston-Salem, North Carolina, USA.

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Classifications MeSH