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Diabetes Obes Metab. 2018 Mar;20(3):556-563. doi: 10.1111/dom.13110. Epub 2017 Oct 10.

Estimated glucose disposal rate predicts mortality in adults with type 1 diabetes.

Author information

1
Department of Clinical Science and Research, Karolinska Institutet, Stockholm, Sweden.
2
Division of Internal Medicine at Södersjukhuset, Stockholm, Sweden.
3
Department of Emergency Medicine, Karolinska University Hospital, Stockholm, Sweden.
4
Department of Internal Medicine, Karolinska Institutet, Stockholm, Sweden.
5
Institute of Medicine, University of Gothenburg, Sahlgrenska University Hospital, Göteborg, Sweden.
6
Centre of Registers in Region Västra Götaland, Göteborg, Sweden.
7
Section of Cardiothoracic Surgery, Karolinska University Hospital, Stockholm, Sweden.
8
Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.

Abstract

AIMS:

This study aimed to investigate the association between insulin resistance as determined by the estimated glucose disposal rate (eGDR), and survival in adults with type 1 diabetes (T1D) in Sweden.

MATERIAL AND METHODS:

Using the Swedish National Diabetes Register, indviduals with T1D were included from January 1, 2005 to December 31, 2012. Outcomes were retrieved from National healthcare registers. Hazard ratios (HRs) with 95% confidence intervals (CIs) were calculated for the associations between eGDR (mg/kg/min) categorized into <4, 4 to 5.99, 6 to 7.99, and ≥8 (reference) and outcomes. Relative survival methods were used to compare survival to a matched Swedish reference population.

RESULTS:

Among 17 050 included individuals with T1D, 10.5%, 20.2%, 20.5% and 48.9% had an eGDR of <4, 4 to 5.99, 6 to 7.99, and ≥8, respectively. Individuals with an eGDR <8 were older and had more comorbidities. During a median follow-up of 7.1 years, there were 946 (6%) deaths; 264 (15%), 367 (11%), 195 (6%) and 120 (1%) deaths occurred in individuals with an eGDR of <4, 4 to 5.99, 6 to 7.99 and ≥8, respectively. After adjustment for a wealth of different covariates including diabetes duration, age, sex and renal function, individuals with an eGDR <4, 4 to 5.99, and 6 to 7.99 had an increased risk of death compared to those with an eGDR ≥8 (adjusted HRs, 95% CIs, P values: 2.78, 2.04 to 3.77, <.001; 1.92, 1.49 to 2.46, <.001; 1.73, 1.34 to 2.21, <.001). Survival in individuals with an eGDR ≥8 was equal to a matched general population.

CONCLUSIONS:

There is a strong association between eGDR and all-cause mortality, as well as cardiovascular mortality, in individuals with T1D. Our findings may guide preventive measures by improving risk assessment in individuals with T1D.

KEYWORDS:

diabetes complications; insulin resistance; observational study; type 1 diabetes

PMID:
28884949
DOI:
10.1111/dom.13110
[Indexed for MEDLINE]

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