Evidence map›Paper›PMID 27539884›Full record

Trial reportJournal of diabetes and its complications

Haptoglobin 2-2 genotype and the risk of coronary artery disease in the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications study (DCCT/EDIC).

Trevor J Orchard, Jye-Yu C Backlund, Tina Costacou, Patricia Cleary, Maria Lopes-Virella, Andrew P Levy, John M Lachin, DCCT/EDIC Research Group

Open access · greenAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of diabetes and its complications. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 18% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. 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 4 institutions in 2 countries.

Trevor J OrchardGraduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.
Jye-Yu C BacklundThe Biostatistics Center, The George Washington University, Rockville, MD, USA.
Tina CostacouGraduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA.
Patricia ClearyThe Biostatistics Center, The George Washington University, Rockville, MD, USA.
Maria Lopes-VirellaMedical University of South Carolina, Charleston, SC, USA.
Andrew P LevyIsrael Institute of Technology, Haifa, Israel.
John M LachinThe Biostatistics Center, The George Washington University, Rockville, MD, USA. Electronic address: jml@bsc.gwu.edu.
DCCT/EDIC Research Group
George Washington University · USUniversity of Pittsburgh · USMedical University of South Carolina · USTechnion – Israel Institute of Technology · IL

Funding

Limited Competition for the Continuation of Epidemiology of Diabetes Interventions and Complications (EDIC) Study Clinical Research Center (Collaborative U01)U01DK094157 · NIDDK · CASE WESTERN RESERVE UNIVERSITY · PI Ionut Bebu, Barbara Halina Braffett · 2011 to 2026
$97.6M
Epidemiology of Diabetes Interventions and Complications Data Coordinating CenterU01DK094176 · NIDDK · GEORGE WASHINGTON UNIVERSITY · PI BEBU, IONUT, BRAFFETT, BARBARA HALINA · 2012 to 2022
$30.8M
The Oxidation Hypothesis Revisited:Haptoglobin Genotype and Diabetic AtheroscleroR01DK085226 · NIDDK · TECHNION-ISRAEL INSTITUTE OF TECHNOLOGY · PI LEVY, ANDREW PETER · 2009 to 2013
$664k
NIDDK NIH HHS R01 DK085226NIDDK NIH HHS U01 DK094157NIDDK NIH HHS U01 DK094176
6 · The paper itself

Abstract

aims/hypothesisHaptoglobin(Hp) 2-2 genotype has been shown to increase coronary artery disease (CAD) risk in numerous type 2 diabetes studies but in only one type 1 diabetes cohort. We assessed the association of Hp2-2 with incident CAD over 26years of follow-up in 1303 Caucasian participants of the Diabetes Control and Complications Trial/Epidemiology of Diabetes Interventions and Complications (DCCT/EDIC) study.

methodsDCCT randomized volunteers with type 1 diabetes to intensive versus conventional therapy within two cohorts: 'primary prevention' with 1-5years diabetes duration and 'secondary intervention' with 1-15years diabetes duration and early retinopathy, with or without albuminuria, but no advanced complications. CAD was defined as myocardial infarction (MI) or death judged to be from CAD, silent MI, angina, coronary revascularization, or congestive heart failure due to CAD.

resultsIn the entire DCCTcohort, Hp2-2 was not significantly associated with incident CAD or MI. However, in pre-specified exploratory subgroup analyses, an increased MI risk was suggested in the secondary cohort for those with Hp2-2. CONCLUSIONS/

interpretationThe analysis does not statistically confirm an overall association between Hp 2-2 and incident CAD, however, some suggestions of associations were observed in secondary analyses.

Indexed as

AdultCoronary Artery DiseaseDiabetes Mellitus, Type 2FemaleGenotypeHaptoglobinsHumansMaleRisk FactorsYoung AdultHaptoglobinsCoronary Artery DiseaseDiabetesEpidemiologyHaptoglobin

Identifiers

PMID27539884
PMCPMC5050105
OpenAlexW2502518734

What OpenQuestion 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 OpenQuestion graph.