In terms of diabetes, 9% of participants had type 2 diabetes at the start of the study. Every third person had prediabetes.
After twelve years, some participants experienced cognitive decline. Almost 30% developed cognitive impairment. In 20%, dementia progressed.
Researchers were able to conduct a detailed analysis of the role of type 2 diabetes in the development of the disease and found that an important factor is how well the diabetes is controlled, not the presence of the disease itself.
“What matters is how well a person controls diabetes. Since there is currently no cure for dementia, prevention is vital, and here we have evidence that it can be done by close diabetes control“Says Abigail Dove, one of the study’s authors.