Table 1.

Baseline assessments

Demographic	Ethnicity Gender Highest level of education attained
Auxological	Height Weight Body mass index
Diabetic	Prior or current use of CGM or flash glucose monitoring (>75% use) No of episodes of severe hypoglycaemia in the 12 months prior to baseline visit No of episodes of diabetic ketoacidosis in the 12 months prior to baseline visit Mean total daily dose of insulin over the previous 14 days Mode of insulin delivery (ie, multiple daily injections or insulin pump) Clinical examination for lipohypertrophy that may impair absorption of subcutaneous insulin
Laboratory	Venous blood sample obtained for glycated haemoglobin (HbA1c), full blood count and serum creatinine
Clinical	Known allergies Concomitant medications Adverse event check
Diet	Assessment of current carbohydrate intake, recorded over a 3-day period
Psychosocial	EuroQol 5-dimensional Questionnaire 5-Level Insulin Dosing Systems: Perceptions, Ideas, Reflections and Expectations (preintervention questionnaire)
Blinded CGM	14 days use of blinded Dexcom G6

CGM, continuous glucose monitoring.