Research by Dr. Toshihiko Yanase of Fukuoka University Japan, referred to in an article in ‘Diabetes Self Management’ by David Spero, BSN, RN, suggests that low HbA1c levels in elderly – over 65 – people is associated with higher levels of frailty than those with higher levels. The study covered 132 people who had had T2 diabetes for an average of 17 years.
The same article also cites the American Diabetes Association recommending looser control for people who are more frail. In these official guidelines they recommend an A1C target of 7.5% for healthy people over 65 compared to 7.0% for younger people. For people with other illnesses or impairments their goal is 8.0% and for complex patients in poor health the A1C goal is 8.5%
Later in the article Spero quotes a meta-analysis by Mike Lustgarten, PhD, finding that whilst a BMI of 20-25 is associated with the longest life expectancy for younger people, for those over 65 the optimum level is around 27.5
https://www.diabetesselfmanagement.com/blog/elderly-a1c-targets-older-people-relaxed-glucose-goals/
An article in the Daily Telegraph of 2/10/17 by James Le Fanu, who writes the paper’s regular ‘Surgery’ column, comments that blood sugar naturally rises with age and that for those over 70 who do have diabetes the optimum HbA1c level is 8-9 rather than the treatment target of 7.5, leading to over-treatment and increased risk of hypoglycaemia among the elderly.
All of the above leaves me wondering. At 80 years of age and having worked at my diet and exercise to get my weight down from 14-2 to 12-7 and my HbA1c down from 75 to 40 since January, I do wonder if in fact I have done more than I need have. Certainly these articles do make me question the ‘one size fits all’ approach to HbA1c and BMI levels that I have seen in the past from my health centre.
Mike