Evidence map›Paper›PMID 19182231›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2009

Education differences in life expectancy with cognitive impairment.

Fiona E Matthews, Carol Jagger, Laura L Miller, Carol Brayne, MRC CFAS

Open access · hybridAbstract readComparative StudyMulticenter Study
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
5.0field-weighted citation impact, top 5% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. More Education May Limit Disability and Extend Life For People With Cognitive Impairment.American journal of Alzheimer's disease and other dementias · 2014
    Article
  14. The methods and materials of health expectancy.Statistical journal of the IAOS · 2014
    Article
  15. Article
  16. Racial differences in the association of education with physical and cognitive function in older blacks and whites.The journals of gerontology. Series B, Psychological sciences and social sciences · 2011
    Article
  17. Cerebrospinal fluid biomarkers for dementia with lewy bodies.International journal of Alzheimer's disease · 2010
    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

5 authors at 2 institutions in 1 country.

Fiona E MatthewsInstitute of Public Health, Cambridge, UK. fiona.matthews@mrc-bsu.cam.ac.uk
Carol Jagger
Laura L Miller
Carol Brayne
MRC CFAS
MRC Biostatistics Unit · GBUniversity of Leicester · GB

Funding

Medical Research Council G0400077Medical Research Council G9901400Medical Research Council MC_U105292687Medical Research Council MRC/G9901400Medical Research Council MRC/U.1052.00.013
6 · The paper itself

Abstract

backgroundLow education has an impact on life expectancy and level of cognition, but little is known on its effect on life expectancy with cognitive impairment.

methodsThe Medical Research Council Cognitive Function and Ageing Study (MRC CFAS) collected population-based longitudinal data on people aged 65 years and older including measures of education and cognitive impairment, using the Mini-Mental State Examination (MMSE), for five geographically diverse areas around England and Wales interviewed between 1991 and 2003. Transitions between health states were calculated using Markov chain methods. Life expectancy in different states of cognitive function as measured by MMSE were further explored for different education groups. The effect of fixed and educationally based cut points for cognitive impairment are investigated.

resultsLife expectancy spent with cognitive impairment is fairly constant with increasing age at around 1.4 years in men and 2.5 years in women, though this reflects a large increase in the proportion of life spent with cognitive impairment. The differences seen between education groups for the proportion of total life with cognitive impairment (men 13% and women 22% of life lived for low education vs men 7% and women 12% in high education group) disappear when education-adjusted cut points are used (10% in men and 17% in women at age 65 for all education groups).

conclusionsThe results show that there is a substantial amount of life expectancy with cognitive impairment in both men and women. The impairment burden is just as great for those with high education as the lowest educated group.

Indexed as

AgedAged, 80 and overCognition DisordersEducational StatusEnglandFemaleGeriatric AssessmentHumansLongevityMalePrevalenceRetrospective StudiesWales

Identifiers

PMID19182231
PMCPMC2691183
OpenAlexW2110105227

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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 OpenQuestion graph.