DigiDiab Pilot: Impact Study Hospital

Inclusion Criteria: * informed consent obtained after being advised of the nature of the study * a documented history of type 2 diabetes prior to inclusion or new-onset hyperglycaemia which requires s.c. insulin therapy during hospital stay * admission to either surgical or internal medicine ward * an expected length of hospital stay for at least 48 hours after enrolment Exclusion Criteria: * type 1 diabetes mellitus * intravenous insulin therapy * hyperglycaemic episodes (ketoacidosis, hyperosmolar state) if they require intravenous insulin therapy * continuous subcutaneous insulin infusion * gestational diabetes or pregnancy * known or suspected allergy to insulin * total parenteral nutrition * any mental condition rendering the patient incapable of giving his/her consent * any disease or condition which according to the investigator or treating physician would interfere with the trial or the safety of the patient Inclusion and exclusion criteria will be the same as above for the retrospective CG with the exception of: * period of time will be from September 2022 to September 2023 * no informed consent will be obtained from the retrospective CG