Evidence map›Paper›PMID 27431507›Full record

ArticleCardiovascular diabetology2016

The influence of baseline risk on the relation between HbA1c and risk for new cardiovascular events and mortality in patients with type 2 diabetes and symptomatic cardiovascular disease.

Sophie H Bots, Yolanda van der Graaf, Hendrik M W Nathoe, Gert Jan de Borst, Jaap L Kappelle, Frank L J Visseren, Jan Westerink, SMART Study Group

Abstract read
In one paragraph

Article in Cardiovascular diabetology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

15 citing papers in PubMed.

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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.

Sophie H BotsUniversity College Utrecht, Utrecht University, Utrecht, The Netherlands.
Yolanda van der GraafJulius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands.
Hendrik M W NathoeDepartment of Cardiology, University Medical Center Utrecht, Utrecht, The Netherlands.
Gert Jan de BorstDepartment of Vascular Surgery, University Medical Center Utrecht, Utrecht, The Netherlands.
Jaap L KappelleDepartment of Neurology, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, The Netherlands.
Frank L J VisserenDepartment of Vascular Medicine, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands.
Jan WesterinkDepartment of Vascular Medicine, University Medical Center Utrecht, PO Box 85500, 3508 GA, Utrecht, The Netherlands. J.Westerink-3@umcutrecht.nl.
SMART Study Group

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStrict glycaemic control in patients with type 2 diabetes has proven to have microvascular benefits while the effects on CVD and mortality are less clear, especially in high risk patients. Whether strict glycaemic control would reduce the risk of future CVD or mortality in patients with type 2 diabetes and pre-existing CVD, is unknown. This study aims to evaluate whether the relation between baseline HbA1c and new cardiovascular events or mortality in patients with type 2 diabetes and pre-existing cardiovascular disease (CVD) is modified by baseline vascular risk.

methodsA cohort of 1096 patients with type 2 diabetes and CVD from the Second Manifestations of ARTerial Disease (SMART) study was followed. The relation between HbA1c at baseline and future vascular events (composite of myocardial infarction, stroke and vascular mortality) and all-cause mortality was evaluated with Cox proportional hazard analyses in a population that was stratified for baseline risk for vascular events as calculated with the SMART risk score. The mean follow-up duration was 6.9 years for all-cause mortality and 6.4 years for vascular events, in which period 243 and 223 cases were reported, respectively.

resultsA 1 % increase in HbA1c was associated with a higher risk for all-cause mortality (HR 1.18, 95 % CI 1.06-1.31). This association was also found in the highest SMART risk quartile (HR 1.33, 95 % CI 1.11-1.60). There was no relation between HbA1c and the occurrence of cardiovascular events during follow-up (HR 1.03, 95 % CI 0.91-1.16). The interaction term between HbA1c and SMART risk score was not significantly related to any of the outcomes.

conclusionIn patients with type 2 diabetes and CVD, HbA1c is related to the risk of all-cause mortality, but not to the risk of cardiovascular events. The relation between HbA1c and all-cause mortality in patients with type 2 diabetes and vascular disease is not dependent on baseline vascular risk.

Indexed as

AgedBlood GlucoseCardiovascular DiseasesDiabetes Mellitus, Type 2Diabetic AngiopathiesFemaleGlycated HemoglobinHumansMaleMiddle AgedMyocardial InfarctionRisk FactorsBlood GlucoseGlycated Hemoglobinhemoglobin A1c protein, humanCardiovascular diseaseGlycaemic controlHbA1cHigh risk populationType 2 diabetes

Identifiers

PMID27431507
PMCPMC4950600

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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.