Management of older adults with diabetes mellitus: Perspective from geriatric medicine

Advances in diabetes medication and population aging are lengthening the lifespans of people with diabetes mellitus (DM). Older patients with diabetes mellitus often have multimorbidity and tend to have polypharmacy. In addition, diabetes mellitus is associated with frailty, functional decline, cognitive impairment, and geriatric syndrome. Although the numbers of patients with frailty, dementia, disability, and/or multimorbidity are increasing worldwide, the accumulated evidence on the safe and effective treatment of these populations remains insufficient. Older patients, especially those older than 75 years old, are often underrepresented in randomized controlled trials of various treatment effects, resulting in limited clinical evidence for this population. Therefore, a deeper understanding of the characteristics of older patients is essential to tailor management strategies to their needs. The clinical guidelines of several academic societies have begun to recognize the importance of relaxing glycemic control targets to prevent severe hypoglycemia and to maintain quality of life. However, glycemic control levels are thus far based on expert consensus rather than on robust clinical evidence. There is an urgent need for the personalized management of older adults with diabetes mellitus that considers their multimorbidity and function and strives to maintain a high quality of life through safe and effective medical treatment. Older adults with diabetes mellitus accompanied by frailty, functional decline, cognitive impairment, and multimorbidity require special management considerations and liaison with both carers and social resources.