Age of diabetes diagnosis and diabetes duration associate with glycated haemoglobin

An earlier age of diagnosis (r = −0.28, p < 0.0001) and longer duration of type 2 diabetes (r = 0.26, p < 0.0001) were each found to correlate with higher HbA1c level, on analysis of a diabetes centre database in people under regular shared care. When combined, these biological variables strongly associate with the current HbA1c level.