Evidence map›Paper›PMID 21487729›Full record

ArticleDiabetologia2011

No evidence of a higher 10 year period prevalence of diabetes among 77,885 twins compared with 215,264 singletons from the Danish birth cohorts 1910-1989.

I Petersen, M M F Nielsen, H Beck-Nielsen, K Christensen

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Diabetologia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 pooled it
5.2field-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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 49 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Article
  6. In Search of Environmental Factors Associated With Global Differences in Birth Weight and BMI.American journal of human biology : the official journal of the Human Biology Council · 2025
    Article
  7. Article
  8. Vitamin K1 Intake and Incident Diabetes in the Danish Diet, Cancer, and Health Study.The Journal of clinical endocrinology and metabolism · 2023
    Article
  9. Article
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  12. Article
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  14. Article
  15. Zygosity Differences in Height and Body Mass Index of Twins From Infancy to Old Age: A Study of the CODATwins Project.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2015
    Article
  16. Article
  17. Article
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  19. Article
  20. The Danish Twin Registry: linking surveys, national registers, and biological information.Twin research and human genetics : the official journal of the International Society for Twin Studies · 2013
    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

4 authors at 2 institutions in 1 country.

I PetersenThe Danish Twin Registry, Danish Aging Research Center, University of Southern Denmark, J. B. Winsløws Vej 9B st.tv., 5000 Odense C, Denmark. ipetersen@health.sdu.dk
M M F Nielsen
H Beck-Nielsen
K Christensen
Odense University Hospital · DKUniversity of Southern Denmark · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisPrevious Danish twin studies have found a highly increased risk of precursors of type 2 diabetes as well as a higher prevalence of type 2 diabetes among twins compared with singletons. Likewise, small-scale studies of Danish twins have shown that monozygotic twins have a higher risk of developing precursors of type 2 diabetes compared with dizygotic twins. In the present register-based study, the 10 year period diabetes prevalence in Danish twins is compared with that in a random sample of Danish citizens. Furthermore, the 10 year period prevalence of diabetes in monozygotic twins is compared with that in dizygotic twins.

methodsThe study population consisted of twins (n = 77,885) identified in the Danish Twin Registry, and a 5% random sample (n = 215,264) from the birth cohorts 1910-1989. We identified diabetes patients by means of three nationwide Danish health registers.

resultsThe number of identified diabetes cases among males was 6,677 (6.24%) for singletons vs 2,271 (5.68%) for twins (difference = 0.56% [0.29-0.83%]). The number among females was 6,143 (5.67%) for singletons and 1,722 (4.54%) for twins (difference = 1.13% [0.88-0.38%]). Restriction to various birth cohorts, known zygosity and known type 2 diabetes did not alter the overall conclusions. The difference between monozygotic twins (males, 5.29%; females, 4.40%) and dizygotic twins (males, 5.77%; females, 4.63%) was non-significant. CONCLUSIONS/

interpretationDanish twins do not have an increased risk of developing diabetes compared with singletons, and the risk of diabetes among monozygotic twins does not differ from that of dizygotic twins.

Indexed as

TwinsAdolescentAdultAgedAged, 80 and overChildDiabetes Mellitus, Type 2FemaleHumansMaleMiddle AgedRisk FactorsTwins, DizygoticTwins, MonozygoticYoung Adult

Identifiers

PMID21487729
OpenAlexW2093959334

What OpenQuestion holds

Textmetadata
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.