• Diabetologia · Oct 2006

    Multicenter Study

    The health-related utility and health-related quality of life of hospital-treated subjects with type 1 or type 2 diabetes with particular reference to differing severity of peripheral neuropathy.

    • C J Currie, C D Poole, A Woehl, C Ll Morgan, S Cawley, M D Rousculp, M T Covington, and J R Peters.
    • Department of Medicine, School of Medicine, Cardiff University, Cardiff, UK. currie@cardiff.ac.uk
    • Diabetologia. 2006 Oct 1; 49 (10): 2272-80.

    Aims/HypothesisWe characterised symptom severity of diabetic peripheral neuropathy (DPN) in people with diabetes, and correlated this with health-related utility and health-related quality of life.Materials And MethodsThe study was undertaken in Cardiff and the Vale of Glamorgan, Wales. A postal survey was mailed to a random sample of subjects identified as having diabetes. Data were collected on the symptoms of neuropathy using the Neuropathic Total Symptom Score (self-administered) (NTSS-6-6A) and on quality of life using the Quality of Life in Diabetes Neuropathy Instrument (QoL-DN), EueroQoL five dimensions (EQ5D) and Short Form 36 (SF36). Other information, such as demographics and self-reported drug use, was also collected. The anonymised data were linked to routine inpatient and outpatient healthcare data.ResultsResponses were received from 1,298 patients. For patients with a clinically confirmed diagnosis of DPN, the mean NTSS-6-SA score was 6.16 vs 3.19 in patients without DPN (p<0.001). Four categories of severity were defined, ranging from none to severe. All quality of life measures showed a deterioration between these groups: the EQ5D(index) fell from an average of 0.81 in those without symptoms to 0.25 in those with severe symptoms, the SF36 general health profile fell from 59.9 to 25.5 (p<0.001) and the QoL-DN increased from 25.8 to 48.1 (p<0.001). Multivariate models also demonstrated that this relationship remained after controlling for other factors.Conclusions/InterpretationThis study demonstrated that severity of DPN symptoms was predictive of poor health-related utility and decreased quality of life. Furthermore, it provides detailed utility data for economic evaluation of treatment of typical diabetes-related morbidity states. Reducing DPN morbidity should be a priority.

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