Evidence map›Paper›PMID 32777967›Full record

SynthesisScandinavian journal of primary health care2020

The association between diabetes and cognitive changes during aging.

Sanna Papunen, Anna Mustakallio-Könönen, Juha Auvinen, Markku Timonen, Sirkka Keinänen-Kiukaanniemi, Sylvain Sebert

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Scandinavian journal of primary health care, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 7% 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

11 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. The Effects of Type 2 Diabetes on Cognitive Performance: A Review of Reviews.International journal of behavioral medicine · 2024
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. 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

6 authors at 2 institutions in 2 countries.

Sanna PapunenCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
Anna Mustakallio-KönönenCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
Juha AuvinenCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
Markku TimonenCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
Sirkka Keinänen-KiukaanniemiCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
Sylvain SebertCentre for Life Course Health Research, Faculty of Medicine, University of Oulu, Oulu, Finland.
University of Oulu · FIGenomics (United Kingdom) · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWorldwide, we are observing a rising prevalence of dementia and mild cognitive impairments that often co-occur with the heightened incidence of non-communicable diseases in the elderly. It is suggested that type 2 diabetes and defects in glucose metabolism might predispose to poorer cognitive performances and more rapid decline in old age.

methodsto address existing knowledge gaps in this area, we systematically reviewed the literature to identify whether patients with type 2 diabetes (T2DM) and pre-diabetes are at a higher risk of poorer cognitive performance, and whether the risk (if any) might affect specific cognitive abilities. We concentrated the review on elderly individuals (65 years or older) at intake. In total, 3251 original articles were retrieved, of which 17 met our inclusion and quality control criteria, which comprised 12 structured questions used to define the articles.

results11 of 17 studies found a statistically significant decline in cognition among individuals who had T2DM or pre-diabetes compared to their non-diabetic counterparts. The association between diabetes and cognitive decline was not always clear, and the extent of the cognitive tests used seemed to have the greatest effect on the results.

conclusionFocusing on a population age 65 years and over, we found insufficient evidence to support an association between pre-diabetes stages and mild cognitive impairment. However, there is consistent evidence to support diabetes as an independent risk factor for low cognitive ability in the elderly. Finally, we found insufficient evidence to support effect of T2DM on distinct cognitive ability due to the scarcity of comparable findings.

Indexed as

Cognition DisordersDiabetes Mellitus, Type 2AgedAgingCognitionHumansRisk Factorscognitive functionsdeclineDiabeteselderlysystematic review

Identifiers

PMID32777967
PMCPMC7470088
OpenAlexW3048722300

What Socratic holds

Textmetadata
LicenceCC BY
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.