TIR

Medical abbreviation · Endocrinology & Diabetes

TIR
Stands forTime in range
CategoriesMedical

TIR stands for Time in range, an endocrinology & diabetes abbreviation.

Percentage of continuous glucose monitor readings between 70 and 180 mg/dL, now a standard measure of diabetes control alongside A1C. International consensus targets for most adults are more than 70 percent in range and less than 4 percent below 70 mg/dL.

Example: TIR improved from 54 to 72 percent after switching to automated insulin delivery.

Usage notes

Targets were set by an international consensus published in 2019. Each 10-point gain in TIR corresponds roughly to a meaningful drop in A1C. Related metrics include time below range (TBR) and time above range (TAR). Pregnancy uses a tighter range of 63–140 mg/dL.

More endocrinology & diabetes abbreviations

  • ACTH – Adrenocorticotropic hormone
  • ADH – Antidiuretic hormone
  • AI – Adrenal insufficiency
  • AID – Automated insulin delivery
  • AVP-D – Arginine vasopressin deficiency
  • CAH – Congenital adrenal hyperplasia
  • CGM – Continuous glucose monitor
  • CS – Cushing's syndrome
  • CSII – Continuous subcutaneous insulin infusion
  • DFU – Diabetic foot ulcer
  • DI – Diabetes insipidus
  • DKA – Diabetic ketoacidosis

See all 64 endocrinology & diabetes abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.