Inclusion Criteria:  Adults aged ≥18 years old who have been diagnosed with type 1 diabetes or parents of children and adolescents (< 18 years old) who have been diagnosed with type 1 diabetes; To be under intensive insulin therapy (basal/bolus system); To regularly use a continuous glucose monitoring system as primary method for glycaemic control; To be able to read and write.  Exclusion Criteria:  None