The natural history of prediabetes in older adults remains unknown.
To assess the rate at which prediabetes progresses to diabetes, leads to death or reverts to normoglycaemia in older adults and to identify prognostic factors related to different outcomes of prediabetes.
In the Swedish National Study on Aging and Care-Kungsholmen, 2575 diabetes-free participants aged =60 years were examined at baseline and followed for up to 12 years. At each wave, diabetes was diagnosed via medical examination, antidiabetic drug use, medical records or glycated haemoglobin (HbA1c) =6.5%. Prediabetes was defined as HbA1c =5.7% and normoglycaemia as HbA1c