Refer to SIGN guidelines :
- 116 Management of diabetes and 154: Pharmacological managment of glycaemic control in people with type 2 diabetes
An HbA1c of ≤53mmol/mol has been shown to reduce the risk of vascular complication of diabetes. A target of ≤48mmol/mol may be appropriate at diagnosis in individuals controlled with diet and/or metformin. However, a higher HbA1c target eg ≤58mmol/mol should be considered in those at risk of hypoglycaemia, eg the elderly, patients treated with insulin or sulfonylureas, and in individuals with pre-exisiting cardiovascular disease.