A Systematic Review and Delphi Study to Ascertain Common Risk Factors for Type 2 Diabetes Mellitus and Dementia and Brain-Related Complications of Diabetes in Adults.

Canadian Journal of Diabetes
Catherine DolanBrian Lawlor

Abstract

Both type 2 diabetes (T2DM) and dementia have multifactorial etiologies. Both are associated with aging and have well-recognized lifestyle, cardiovascular and psychosocial risk factors. However, uncertainty exists in the literature with regard to: 1) the potentially modifiable risk factors common to both dementia and T2DM, and 2) the risk of brain-related complications in those with established diabetes. In this study, we address this uncertainty and inform design of a survey questionnaire to assess knowledge about diabetes and brain health among at-risk groups. This investigation consisted of a mixed-methods approach, including a Delphi consensus study preceded by a systematic literature review. The review was conducted using MEDLINE, EMBASE and Cochrane Library databases. A 2-round online Delphi study, informed by the review, invited international experts to rate their agreement with proposed risk factors and complications. Of 7,337 abstracts retrieved, 13 were included in the final review. Among 46 international experts invited to take part in the Delphi study, 14 (32%) responded. In the Delphi study, hypertension, obesity, physical inactivity and heavy alcohol consumption reached consensus as risk factors common to both T2D...Continue Reading

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