Metformin and Sulfonylurea Use and Risk of Incident Dementia

Mayo Clinic Proceedings
Jeffrey F ScherrerSascha Dublin

Abstract

To compare incident dementia risk among patients who initiated treatment with metformin or sulfonylurea in Veterans Health Affairs (VHA) patients with replication in Kaiser Permanente Washington (KPW) patients to determine whether first-choice antidiabetic medications are associated with reduced risk of dementia. Cohorts contained 75,187 VHA patients and 10,866 KPW patients, 50 years and older, who initiated monotherapy with metformin or sulfonylurea. Patients were free of dementia diagnoses and any diabetes treatment for 2 years before cohort entry. Variables were extracted from electronic health data from VHA (1999-2015) and KPW (1996-2015), which included diagnosis codes, pharmacy data, laboratory values, and demographic characteristics. Propensity scores and inverse probability of treatment weighting controlled for confounding. Veterans Health Affairs patients were 60.8±6.8 years of age on average, and KPW patients were 63.1±9.5 years of age. In the VHA sample, 72,769 (96.8%) were male; and in the KPW sample, 5480 (50.4%). After adjusting for confounding, metformin initiation was associated with a significantly (P=.02) lower risk of dementia in VHA (hazard ratio, 0.9; 95% CI, 0.9-1.0), with a similar point estimate in KPW (...Continue Reading

Citations

Nov 30, 2019·The Journal of Clinical Endocrinology and Metabolism·Janet K SluggettSirpa Hartikainen
Nov 28, 2020·The Journal of Nutrition, Health & Aging·J E Morley
Aug 20, 2021·The Journal of Nutrition, Health & Aging·J E Morley
Aug 24, 2021·Vaccine·Timothy L WiemkenJeffrey F Scherrer
Sep 4, 2021·Nicotine & Tobacco Research : Official Journal of the Society for Research on Nicotine and Tobacco·Joanne SalasJeffrey F Scherrer

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