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Open Access Original investigation

Co-morbidity but not dysglycaemia reduces quality of life in patients with type-2 diabetes treated with oral mono- or dual combination therapy – an analysis of the DiaRegis registry

Jürgen Wasem1, Peter Bramlage2*, Anselm K Gitt3, Christiane Binz4, Michael Krekler4, Evelin Deeg3, Diethelm Tschöpe56 and DiaRegis Study Group

Author Affiliations

1 Lehrstuhl für Medizinmanagement, Universität Duisburg-Essen, Essen, Germany

2 Institut für Pharmakologie und präventive Medizin, Mahlow, Germany

3 Institut für Herzinfarktforschung Ludwigshafen an der Universität Heidelberg, Ludwigshafen, Germany

4 Bristol-Myers Squibb, Medical Department, Munich, Germany

5 Stiftung „Der herzkranke Diabetiker“in der Deutschen Diabetes Stiftung, Bad Oeynhausen, Germany

6 Herz- und Diabeteszentrum Nordrhein-Westfalen in Bad Oeynhausen, Universitätsklinik der Ruhr Universität Bochum, Bochum, Germany

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Cardiovascular Diabetology 2013, 12:47  doi:10.1186/1475-2840-12-47

Published: 20 March 2013

Abstract

Background

Type-2 diabetes mellitus has a major impact on health related quality of life (HRQoL). We aimed to identify patient and treatment related variables having a major impact.

Methods

DiaRegis is a prospective diabetes registry. The EQ-5D was used to describe differences in HRQoL at baseline. Odds ratios (OR) with 95% confidence intervals (CI) were determined from univariable regression analysis. For the identification of independent predictors of a low score on the EQ-5D, multivariable unconditional logistic regression analysis was performed.

Results

A total of 2,760 patients were available for the present analysis (46.7% female, median age 66.2 years). Patients had considerable co-morbidity (18.3% coronary artery disease, 10.6% heart failure, 5.9% PAD and 5.0% stroke/TIA). Baseline HbA1c was 7.4%, fasting- and postprandial plasma glucose 139 mg/dl and 183 mg/dl.

The median EQ-5D was 0.9 (interquartile range [IQR] 0.8–1.0). Independent predictors for a low EQ-5D were age > 66 years (OR 1.49; 95%CI 1.08–2.06), female gender (2.11; 1.55–2.86), hypertension (1.73; 1.03–2.93), peripheral neuropathy (1.62; 0.93–2.84) and clinically relevant depression (11.01; 3.97–30.50). There was no influence of dysglycaemia on the EQ-5D score.

Conclusion

The present study suggests, that co-morbidity but not average glycaemic control reduces health related quality of life in type 2 diabetes mellitus.