Potential diabetes overtreatment and risk of adverse events among older adults in Ontario: a population-based study.

AIMS/HYPOTHESIS: More than 25% of older adults (age ≥75 years) have diabetes and may be at risk of adverse events related to treatment. The aim of this study was to assess the prevalence of intensive glycaemic control in this group, potential overtreatment among older adults and the impact of overtreatment on the risk of serious events. METHODS: We conducted a retrospective, population-based cohort study of community-dwelling older adults in Ontario using administrative data. Participants were ≥75 years of age with diagnosed diabetes treated with at least one anti-hyperglycaemic agent between 2014 and 2015. Individuals were categorised as having intensive or conservative glycaemic control (HbA1c <53 mmol/mol [<7%] or 54-69 mmol/mol [7.1-8.5%], respectively), and as undergoing treatment with high-risk (i.e. insulin, sulfonylureas) or low-risk (other) agents. We measured the composite risk of emergency department visits, hospitalisations, or death within 30 days of reaching intensive glycaemic control with high-risk agents. RESULTS: Among 108,620 older adults with diagnosed diabetes in Ontario, the mean (± SD) age was 80.6 (±4.5) years, 49.7% were female, and mean (± SD) diabetes duration was 13.7 (±6.3) years. Overall, 61% of individuals were treated to intensive glycaemic control and 21.6% were treated to intensive control using high-risk agents. Using inverse probability treatment weighting with propensity scores, intensive control with high-risk agents was associated with nearly 50% increased risk of the composite outcome compared with conservative glycaemic control with low-risk agents (RR 1.49, 95% CI 1.08, 2.05). CONCLUSIONS/INTERPRETATION: Our findings underscore the need to re-evaluate glycaemic targets in older adults and to reconsider the use of anti-hyperglycaemic medications that may lead to hypoglycaemia, especially in setting of intensive glycaemic control.

Type 2 Diabetes in Older Adults in Long-Term Care Homes: An Educational Intervention to Improve Diabetes Care.

OBJECTIVES: Over 25% of nursing home residents have diabetes. Nurses (registered nurses and registered practical nurses), registered dietitians and personal support workers (PSWs) provide the bulk of diabetes care in long-term care (LTC) homes, but their self-rated diabetes knowledge is poor. In this study, we evaluated the impact of an educational intervention on comfort with, and knowledge of, diabetes management among frontline LTC staff. METHODS: We implemented an educational intervention in 2 LTC homes in Ontario that targeted nurses and dietitians, PSWs and physicians. A self-assessment questionnaire and a knowledge test were administered to nurses and dietitians and PSWs before and after the intervention. We also measured pre- and postintervention glycated hemoglobin levels, use of sliding scale insulin and type and dose of diabetes medications prescribed. RESULTS: After the intervention, both the nurses and dietitians and PSWs groups demonstrated increased comfort with diabetes management and improved self-appraised knowledge. Among PSWs, knowledge of foot care improved the most, and the nurses and dietitians group had the greatest improvement in knowledge of blood glucose monitoring. In addition, there was reduced use of sliding scale insulin, and in the number of residents requiring renal-based dose reductions of glucose-lowering medications. This intervention was innovative as it targeted different LTC health-care providers; it demonstrated the potential to increase LTC health-care providers' confidence in diabetes management. Future studies could assess the clinical benefits of an educational intervention on rates of hypoglycemia and improving A1C targets. CONCLUSIONS: An educational intervention can improve knowledge and comfort of diabetes management of frontline LTC staff.