Evidence map›Paper›PMID 24068783›Full record

ArticleNeurology2013

ω-3 fatty acids and domain-specific cognitive aging: secondary analyses of data from WHISCA.

Eric M Ammann, James V Pottala, William S Harris, Mark A Espeland, Robert Wallace, Natalie L Denburg, Ryan M Carnahan, Jennifer G Robinson

Registry-linked trialOpen access · bronzeAbstract readComparative Study
In one paragraph

Article in Neurology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00631332 (Effects of Hormone Replacement Therapy on Cognitive Aging), which is not on this map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 9% 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.

NCT00631332 completednot on this map

Effects of Hormone Replacement Therapy on Cognitive Aging: Women's Health Initiative Study of Cognitive Aging (WHISCA)

TypeobservationalSponsorWake Forest UniversityRan1999 to 2008Enrolled2,303ConditionsHealthy
3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Observational
  15. Review
  16. Article
  17. Article
  18. Effects of N-3 Polyunsaturated Fatty Acids on Dementia.Journal of clinical medicine research · 2017
    Review
  19. Article
  20. Review
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 1 institution in 1 country.

Eric M AmmannFrom the Department of Epidemiology (E.M.A., R.W., R.M.C., J.G.R.), College of Public Health, and Departments of Internal Medicine (R.W., J.G.R.) and Neurology (N.L.D.), College of Medicine, University of Iowa, Iowa City; OmegaQuant Analytics (J.V.P., W.S.H.), Sioux Falls; Department of Medicine (W.S.H.), Sanford School of Medicine, University of South Dakota, Vermillion; and Department of Biostatistical Sciences (M.A.E.), Wake Forest School of Medicine, Winston-Salem, NC.
James V Pottala
William S Harris
Mark A Espeland
Robert Wallace
Natalie L Denburg
Ryan M Carnahan
Jennifer G Robinson
University of South Dakota · US

Funding

PHS HHS HHSN268201100001CPHS HHS HHSN268201100002CPHS HHS HHSN268201100004CPHS HHS HHSN271201100004CPHS HHS HSN268201100003CPHS HHS HSN268201100046C
6 · The paper itself

Abstract

objectiveTo test the hypothesis that higher levels of red blood cell (RBC) docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) have a protective association with domain-specific cognitive function in women aged 65 years and older.

methodsA total of 2,157 women with normal cognition enrolled in a clinical trial of postmenopausal hormone therapy were followed with annual cognitive testing for a median of 5.9 years. In this retrospective cohort study, we assessed the relationship between prerandomization RBC DHA + EPA levels and a) cognitive measures at baseline, and b) cognitive change over time. Endpoints were composite cognitive function and performance in 7 cognitive domains: fine motor speed, verbal memory, visual memory, spatial ability, verbal knowledge, verbal fluency, and working memory.

resultsAfter adjustment for demographic, clinical, and behavioral characteristics, no significant (p < 0.01) cross-sectional cognitive differences were found between women in the high and low DHA + EPA tertiles at the time of the first annual cognitive battery. In addition, no significant (p < 0.01) differences were found between the high and low DHA + EPA tertiles in the rate of cognitive change over time.

conclusionsWe did not find an association between RBC DHA + EPA levels and age-associated cognitive decline in a cohort of older, dementia-free women.

Indexed as

AgedAged, 80 and overAgingCognitionCognition DisordersCross-Sectional StudiesDocosahexaenoic AcidsEicosapentaenoic AcidErythrocytesFatty Acids, Omega-3FemaleFollow-Up StudiesHumansNeuropsychological TestsRandomized Controlled Trials as TopicRetrospective StudiesDocosahexaenoic AcidsEicosapentaenoic AcidFatty Acids, Omega-3

Identifiers

PMID24068783
PMCPMC3888166
OpenAlexW2162475421

What Socratic holds

Textmetadata
Read underepoch 390

Registered trials

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.