Glycemic control according to glomerular filtration rate in patients with type 2 diabetes and overt nephropathy: a prospective observational study

Diabetes Research and Clinical Practice
Dominique JolyBéatrice Fiquet

Abstract

Type 2 diabetes (T2D) and chronic kidney disease (CKD) are closely linked. This study aimed to describe and analyze the relations between renal function and glycemic control in T2D patients with overt nephropathy. Data were collected from a French observational prospective multicenter study. Patients included were adults with T2D, clinical proteinuria and an estimated glomerular filtration rate (eGFR) over 15 mL/min/1.73 m(2). Baseline data and glycemic control after a one-year follow-up are presented here. Data from 986 adult patients were analyzed. Mean age was 70 years. Mean eGFR was 42 mL/min/1.73 m(2), 66% of patients had proteinuria above 1g/day. HbA1c was higher in patients with lower eGFR in a model adjusted to age, gender, body mass index, hemoglobin level and erythropoietin use. Statistical significance was lost when stepwise multivariate analysis took into account the type of pharmacological treatment used to treat hyperglycemia.The type of antidiabetic agents differed across eGFR strata. Below 60 mL/min/1.73 m(2), the use of metformin declined while the use of insulin increased.After one year of follow up, 35% of patients had persistently poor or worsened glycemic control (HbA1c>8%). The only covariate independently...Continue Reading

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