Evidence map›Paper›PMID 32965068›Full record

ArticleDiabetes, obesity & metabolism2021

Association between visit-to-visit HbA1c variability and the risk of cardiovascular disease in patients with type 2 diabetes.

Yun Shen, Jian Zhou, Lizheng Shi, Elizabeth Nauman, Peter T Katzmarzyk, Eboni G Price-Haywood, Ronald Horswell, Alessandra N Bazzano, Somesh Nigam, Gang Hu

Open access · greenAbstract read
In one paragraph

Article in Diabetes, obesity & metabolism, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 3 pooled it
7.8field-weighted citation impact, top 2% 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

25 citing papers in PubMed, 3 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Article
  6. Observational
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. Article
  19. Review
  20. 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

10 authors at 5 institutions in 2 countries.

Yun ShenPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Jian ZhouPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.ORCID 0000-0002-1534-2279
Lizheng ShiDepartment of Global Health Management and Policy, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA.
Elizabeth NaumanLouisiana Public Health Institute, New Orleans, Louisiana, USA.
Peter T KatzmarzykPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Eboni G Price-HaywoodOchsner Health System Center for Outcomes and Health Services Research, New Orleans, Louisiana, USA.
Ronald HorswellPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
Alessandra N BazzanoDepartment of Global Community Health and Behavioral Sciences, Tulane University School of Public Health and Tropical Medicine, New Orleans, Louisiana, USA.
Somesh NigamBlue Cross and Blue Shield of Louisiana, Baton Rouge, Louisiana, USA.
Gang HuPennington Biomedical Research Center, Baton Rouge, Louisiana, USA.ORCID 0000-0002-6172-8017
Pennington Biomedical Research Center · USTulane University · USBlue Cross and Blue Shield of Kansas City · USLouisiana Public Health Institute · USOchsner Health System · US

Funding

Tracking & Evaluation CoreU54GM104940 · NIGMS · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI JUDD E SHELLITO · 2012 to 2026
$69.1M
Research BaseP30DK072476 · NIDDK · LSU PENNINGTON BIOMEDICAL RESEARCH CTR · PI Sujoy Ghosh · 2005 to 2026
$26.5M
NIDDK NIH HHS P30 DK072476NIGMS NIH HHS U54 GM104940
6 · The paper itself

Abstract

aimTo investigate the association between visit-to-visit HbA1c variability and the risk of cardiovascular disease in patients with type 2 diabetes. MATERIALS AND

methodsWe performed a retrospective cohort study of 29 260 patients with at least four HbA1c measurements obtained within 2 years of their first diagnosis of type 2 diabetes. Different HbA1c variability markers were calculated, including the standard deviation (SD), coefficient of variation (CV) and adjusted SD. Cox proportional hazards regression models were used to estimate the association of these HbA1c variability markers with incident cardiovascular disease.

resultsDuring a mean follow-up of 4.18 years, a total of 3746 incident cardiovascular disease cases were diagnosed. Multivariate-adjusted hazard ratios for cardiovascular disease across the first, second, third and fourth quartiles of HbA1c SD values were 1.00, 1.30 (95% confidence interval [CI] 1.18-1.42), 1.40 (95% CI 1.26-1.55) and 1.59 (95% CI 1.41-1.77) (P for trend <.001), respectively. When we utilized HbA1c CV and adjusted HbA1c SD values as exposures, similar positive associations were observed. HbA1c variability was also associated with the risk of first and recurrent severe hypoglycaemic events. A mediating effect of severe hypoglycaemia was observed between HbA1c variability and incident cardiovascular disease.

conclusionsLarge visit-to-visit HbA1c variability is associated with an increased risk of cardiovascular disease in patients with type 2 diabetes. Severe hypoglycaemia may mediate the association between HbA1c variability and incident cardiovascular disease.

Indexed as

Cardiovascular DiseasesDiabetes Mellitus, Type 2Blood GlucoseGlycated HemoglobinHumansRetrospective StudiesRisk FactorsBlood GlucoseGlycated Hemoglobincardiovascular disease, severe hypoglycaemic event, visit-to-visit HbA1c variability

Identifiers

PMID32965068
PMCPMC9092602
OpenAlexW3088059060

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.