BES2020 BES 2020 Chronic complications versus glycaemic variability, time in range and HbA1c in people with type 1 diabetes: sub study of the RESCUE-trial (1 abstracts)
Chronic complications versus glycaemic variability, time in range and HbA1c in people with type 1 diabetes: sub study of the RESCUE-trial
El Malahi A 1 , Van Elsen M 1 , Charleer S 2 , De Ridder F 1, , Ledeganck K 3 , Keymeulen B 4 , Crenier L 5 , Radermecker R 6 , Lapauw B 7 , Vercammen C 8 , Nobels F 9 , Mathieu C 2 , Gillard P 2 & De Block C 1,
1Endocrinology-Diabetology, University Hospital Antwerp, Edegem, Belgium; 2Endocrinology, University Hospitals Leuven – KU Leuven, Leuven, Belgium; 3Laboratory of experimental medicine and paediatrics, University of Antwerp, Antwerp, Belgium; 4Diabetology, University Hospital Brussels, Brussels, Belgium; 5Endocrinology, Université Libre de Bruxelles – Hôpital Erasme, Brussels, Belgium; 6Diabetes, Nutrition and Metabolic disorders, CHU Liège, Liège, Belgium; 7Endocrinology, Ghent University Hospital, Ghent, Belgium; 8Endocrinology, Imelda Hospital, Bonheiden, Belgium, 9Endocrinology, OLV Hospital Aalst, Aalst, Belgium
Background and aims: So far, HbA1c is the only metric of glucose control showing a strong association with chronic complications. However, it does not reflect short-term glycemic variability nor provides guidance in decreasing risk of hypoglycemia. More widespread use of continuous glucose monitoring (CGM) has changed the way people with type 1 diabetes (T1D) manage their glycemia by providing information about glycemic variability and time spent in different glucose ranges.
Materials and methods: Parameters that could have a link with diabetes complications were analyzed of 515 adults with T1D who entered the Belgian reimbursement system for real-time CGM (rtCGM): HbA1c, standard deviation (S.D.), coefficient of variation (%CV), time in range (TIR, 70–180 mg/dl), age, diabetes duration, BMI, and gender. Association between glucometrics from the first 2 weeks of rtCGM use and presence of the following diabetes complications at start were investigated with multiple logistic regression: composite microvascular complications (defined as presence of at least 1 of the following: peripheral or autonomic neuropathy, retinopathy, nephropathy), macrovascular complications, and hospitalization for hypoglycemia and ketoacidosis.
Results: Diabetes duration (OR=1.12, P<0.001) and TIR (OR=0.97, P=0.005) were independently correlated with composite microvascular complications. For nephropathy, diabetes duration (OR=1.08, P<0.001) and HbA1c (OR=1.65, P=0.012) were independently associated. For retinopathy it were diabetes duration (OR=1.14, P<0.001) and TIR (ORv0.96, P<0.001). For peripheral and autonomic neuropathy it were diabetes duration (OR=1.09, P<0.001; OR=1.08, P<0.001) and S.D. (OR=1.03, P=0.026; OR=1.035, P=0.015). Age (OR=1.08, P=0.003) and HbA1c (OR=1.80, P=0.044) were independently correlated with macrovascular complications. Only TIR (OR=0.97, P=0.021) was independently associated with hospitalization for hypoglycemia or ketoacidosis.
Conclusion: Shorter TIR was associated with the presence of composite microvascular complications, and with retinopathy in particular. A higher S.D. was linked to peripheral and autonomic neuropathy. For hospitalization due to hypoglycemia or ketoacidosis, TIR was the most important factor.
Volume 71
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Endocrine Abstracts
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