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Retinopathy, nephropathy, peripheral neuropathy and geriatric scale scores in elderly people with Type 2 diabetes

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Abstract

Aims

To analyse the relationships between retinopathy, nephropathy, peripheral neuropathy and geriatric scale scores in elderly people with Type 2 diabetes.

Methods

GERODIAB is the first French multi-centre, prospective, observational study designed to assess the influence of glycaemic control on mortality and morbidity through a 5-year follow-up study in people with Type 2 diabetes aged 70 years and older. In this report the relationships at baseline between retinopathy, nephropathy and peripheral neuropathy, and five geriatric scale scores in 987 people, using bivariate and multivariate analyses are analysed.

Results

Retinopathy (26%) was significantly associated with impaired scores on the Mini Geriatric Depression Scale, the Mini Nutritional Assessment and the Instrumental Activities of Daily Living scale. Logistic regression showed that the duration of diabetes, BMI, Mini Geriatric Depression Scale, hypoglycaemia and HbA1c were associated with retinopathy (concordance 69.1%; P < 0.001). Nephropathy (47.4%, including 34.8% with Modification of Diet in Renal Disease < 60 ml/min) was significantly associated with impaired Activities of Daily Living and Instrumental Activities of Daily Living scale scores. Using the logistic model, the most significant factors were age, duration of diabetes, triglycerides, HDL cholesterol, hypoglycaemia, hypertension and BMI (concordance 66.3%; P < 0.001). Peripheral neuropathy (28.2%) was associated with impaired scores on the Mini Mental State Examination, Activities of Daily Living, Instrumental Activities of Daily Living and Mini Geriatric Depression Scales. In the logistic model, diastolic blood pressure, duration of diabetes and the Instrumental Activities of Daily Living, Mini Geriatric Depression Scale and Mini Mental State Examination scales were included (concordance 69.8%; P < 0.001).

Conclusion

In this specific sample, classical microvascular complications of diabetes were found to be associated with impaired geriatric scale scores. This highlights the benefits of systematic assessment in elderly people with Type 2 diabetes.

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