Participants achieving HBA1c < 58 mmol/mol (< 7.5%) had ~ 60% of CBG readings in range (4–10 mmol/l), with up to 30% of readings > 10 mmol/l. This target of achieving 60% or more readings within target, and being permissive with up to 30% readings > 10 mmol/l may be a novel target for people with diabetes, and may reduce anxiety associated with readings out of range (Diabetic medicine)