Abbreviations: (AI) adrenal insufficiency, (CGM) continuous glucose monitoring, (CI) confidence interval, (CLD) chronic liver disease, (CSII) continuous subcutaneous insulin delivery, (DM) diabetes mellitus, (EMS) emergency medical services, (ER) emergency room, (ERT) emergency room transportation, (ESRD) end-stage renal disease, (HR) hazard ratio, (IQR) interquartile range, (MDI) multiple daily insulin injection, (non-DM) with no diabetes mellitus, (OAA) oral antihyperglycemic agents, (SD) standard deviation, (SFUI) sulphonylureas alone or in combination with insulin, (TIDM) type 1 diabetes mellitus, (T2DM) type 1 diabetes mellitus