Abstract
Despite the emergence of new drugs with novel mechanisms of action, treatment options for older people and those with chronic kidney disease are still limited. Using a medical database compiled from Diagnostic Procedure Combination hospitals, we retrospectively analyzed treatment status, glycemic control and kidney function over 3 years after the first oral antidiabetic drugs in Japanese adults with type 2 diabetes who were aged ≥65 years. Among 5,434 study participants, 3,246 (59.7%) were men, the median age was 72.0 years, the baseline median hemoglobin A1c was 7.1% and the baseline median estimated glomerular filtration rate was 66.6 mL/min/1.73 m2. Treatment was intensified in 40.0% of people during the 3-year observation period, and the median time to the first treatment intensification was 198 days. Insulin was the most commonly used agent for treatment intensification (36.9%, 802/2,175). Hemoglobin A1c of <7.0% was achieved in 3,571 (65.7%) at 360 ± 90 days. Multivariable logistic regression analysis found that baseline age, hemoglobin A1c and estimated glomerular filtration rate were negatively associated with achieving hemoglobin A1c of <7.0% at 360 ± 90 days. In older Japanese adults with type 2 diabetes, those with a lower estimated glomerular filtration rate were more likely to achieve hemoglobin A1c of <7.0%. To safely manage blood glucose levels in older adults with chronic kidney disease, physicians should remain vigilant about the risk of iatrogenic hypoglycemia.
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