Evidence map›Paper›PMID 27878914›Full record

ArticlePediatric diabetes2017

Severe hypoglycemia rates are not associated with HbA1c: a cross-sectional analysis of 3 contemporary pediatric diabetes registry databases.

Aveni Haynes, Julia M Hermann, Kellee M Miller, Sabine E Hofer, Timothy W Jones, Roy W Beck, David M Maahs, Elizabeth A Davis, Reinhard W Holl, T1D Exchange, WACDD and DPV registries

Abstract read
In one paragraph

Article in Pediatric diabetes, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

35 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Guideline
  5. Trial
  6. Review
  7. Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. 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

10 authors.

Aveni HaynesTelethon Kids Institute, The University of Western Australia, Perth, Australia.
Julia M HermannUniversity of Ulm, ZIBMT, Institute of Epidemiology and Medical Biometry, Ulm, Germany.
Kellee M MillerJaeb Center for Health Research, Tampa, Florida.
Sabine E HoferDepartment of Pediatrics, Medical University of Innsbruck, Innsbruck, Austria.
Timothy W JonesTelethon Kids Institute, The University of Western Australia, Perth, Australia.
Roy W BeckJaeb Center for Health Research, Tampa, Florida.
David M MaahsDepartment of Pediatrics, Stanford University, Stanford, California.
Elizabeth A DavisTelethon Kids Institute, The University of Western Australia, Perth, Australia.
Reinhard W HollUniversity of Ulm, ZIBMT, Institute of Epidemiology and Medical Biometry, Ulm, Germany.
T1D Exchange, WACDD and DPV registries

Funding

Stanford Islet Research CoreP30DK116074 · NIDDK · STANFORD UNIVERSITY · PI Seung K Kim · 2017 to 2026
$19.5M
NIDDK NIH HHS P30 DK116074
6 · The paper itself

Abstract

objectiveTo examine the association between glycated hemoglobin (HbA1c) and severe hypoglycemia rates in patients with type 1 diabetes receiving usual care, by analysing data from the US Type 1 Diabetes Exchange (T1DX), German/Austrian Diabetes Patienten Verlaufsdokumenation (DPV), and Western Australian Children Diabetes Database (WACDD) diabetes registries.

methodsData for patients with type 1 diabetes, aged <18 years with a minimum duration of diabetes of 2 years, were extracted from each registry for a 12-month observation period between 2011 and 2012 (7,102 T1DX, 18,887 DPV, and 865 WACDD). Rates of severe hypoglycemia (self-reported loss of consciousness/convulsion) were estimated per 100 patient-years and analyzed by HbA1c, source registry, treatment regimen, and age group.

resultsOverall, the severe hypoglycemia rate per 100 patient years was 7.1, 3.3, and 6.7 in T1DX, DPV, and WACDD patients, respectively. Lower HbA1c was not associated with an increased rate of severe hypoglycemia when examined by source registry, treatment regimen, or age group.

conclusionAn inverse relationship between mean HbA1c and risk of severe hypoglycemia was not observed in this study of 3, independent cohorts of children and adolescents with type 1 diabetes. Investigation in other large, longitudinal cohorts is recommended to further characterize the contemporary relationship between glycemic control and risk of severe hypoglycemia rates in pediatric patients with type 1 diabetes.

Indexed as

AdolescentAustriaChildCohort StudiesCross-Sectional StudiesDiabetes Mellitus, Type 1Electronic Health RecordsFemaleGermanyGlycated HemoglobinHumansHypoglycemiaIncidenceLongitudinal StudiesMaleProspective StudiesGlycated Hemoglobinhemoglobin A1c protein, humanadolescentchilddiabetes mellitushypoglycemiaregistriestype 1

Identifiers

PMID27878914
PMCPMC7162500

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.