Evidence map›Paper›PMID 37634549›Full record

ArticleJournal of the American Medical Directors Association2023

The Role of Different Weakness Cut-Points for Future Cognitive Impairment in Older Americans.

Ryan McGrath, Grant R Tomkinson, Jeremy M Hamm, Kirsten Juhl, Kelly Knoll, Kelly Parker, Ashleigh E Smith, Yeong Rhee

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Medical Directors Association, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 39% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Ryan McGrathHealthy Aging North Dakota (HAND), North Dakota State University, Fargo, ND, USA; Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND, USA; Fargo VA Healthcare System, Fargo, ND, USA; Department of Geriatrics, University of North Dakota, Grand Forks, ND, USA; Alliance for Research in Exercise, Nutrition, and Activity (ARENA), Allied Health & Human Performance, University of South Australia, Adelaide, South Australia, Australia. Electronic address: ryan.mcgrath@ndsu.edu.
Grant R TomkinsonAlliance for Research in Exercise, Nutrition, and Activity (ARENA), Allied Health & Human Performance, University of South Australia, Adelaide, South Australia, Australia.
Jeremy M HammDepartment of Psychology, North Dakota State University, Fargo, ND, USA.
Kirsten JuhlDepartment of Internal Medicine, University of North Dakota, Grand Forks, ND, USA; Sanford Health, Fargo, ND, USA.
Kelly KnollHealthy Aging North Dakota (HAND), North Dakota State University, Fargo, ND, USA; Department of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND, USA.
Kelly ParkerDepartment of Psychology, North Dakota State University, Fargo, ND, USA.
Ashleigh E SmithAlliance for Research in Exercise, Nutrition, and Activity (ARENA), Allied Health & Human Performance, University of South Australia, Adelaide, South Australia, Australia.
Yeong RheeDepartment of Health, Nutrition, and Exercise Sciences, North Dakota State University, Fargo, ND, USA.
North Dakota State University · USUniversity of South Australia · AUUniversity of North Dakota · US

Funding

Perceived Control and Cognitive Aging: Pathways to Preserve Cognitive Functioning and Reduce Risk of Alzheimer’s Disease in Socioeconomically Diverse PopulationsR01AG075117 · NIA · NORTH DAKOTA STATE UNIVERSITY · PI HAMM, JEREMY · 2022 to 2025
$1.7M
GRip Assessment for Protocol Enhancements (GRAPE) in Older AdultsR15AG072348 · NIA · NORTH DAKOTA STATE UNIVERSITY · PI MCGRATH, RYAN · 2022 to 2025
$838k
NIA NIH HHS R01 AG075117NIA NIH HHS R15 AG072348
6 · The paper itself

Abstract

objectivesNew absolute and normalized handgrip strength (HGS) cut-points may not yield similar predictive value for cognitive performance. We sought to determine the associations of (1) each absolute and normalized weakness cut-point, and (2) compounding weakness on future cognitive impairment in older Americans.

designLongitudinal panel. SETTING AND

participantsThe analytic sample included 11,116 participants aged ≥65 years from the 2006 to 2018 waves of the Health and Retirement Study. Participants from the Health and Retirement Study completed detailed interviews that included physical measures and core interviews.

methodsThe modified Telephone Interview of Cognitive Status assessed cognitive function and persons scoring <11 were classified as having a cognitive impairment. A handgrip dynamometer measured HGS. Men were considered weak if their HGS was <35.5 kg (absolute), <0.45 kg/kg (body mass normalized), or <1.05 kg (body mass index normalized), whereas women were classified as weak if their HGS was <20.0 kg, <0.337 kg/kg, or <0.79 kg. Compounding weakness included those below 1, 2, or all 3 cut-points. Generalized estimating equations quantified the associations.

resultsPersons considered weak under the absolute cut-point had 1.62 (95% CI 1.34-1.96) greater odds for future cognitive impairment, but no significant associations were observed for those classified as weak under the body mass [odds ratio (OR) 1.12, CI 0.91-1.36] and body mass index normalized (OR 1.17, CI 0.95-1.43) cut-points. Older Americans below all 3 weakness cut-points had 1.47 (CI 1.15-1.88) greater odds for future cognitive impairment, but no significant associations were found for persons classified as weak under 1 (OR 1.08, CI 0.83-1.42) or 2 (OR 1.19, CI 0.91-1.55) cut-points. CONCLUSIONS AND IMPLICATIONS: Our findings suggest that each weakness cut-point has differential prognostic value for future cognitive impairment, and aggregating weakness cut-points may improve their predictive utility. Consideration should be given to how weakness categories are uniquely linked to cognitive function.

Indexed as

Cognitive DysfunctionHand StrengthAgedBody Mass IndexCognitionFemaleGeriatric AssessmentHumansMaleAging functional statusgeriatricsmuscle strengthmuscle strength dynamometer

Identifiers

PMID37634549
PMCPMC10840802
OpenAlexW4386122861

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.