For example, a time-in-range of 80% corresponds to an HbA1c level of 5.9% (41 mmol / mol), 70% corresponds to 6.7% (50 mmol / mol), 60% corresponds to 7.5% (58 mmol / mol), and 40% time-in-range corresponds to an HbA1c level of 9% (75 mmol / mol) (1).