HOMA-IR is a calculated measure used to estimate insulin resistance by assessing fasting insulin and fasting blood glucose levels. It provides an indication of how effectively the body responds to insulin and helps evaluate metabolic health. The test is needed to identify or monitor insulin resistance, which may be associated with prediabetes, type 2 diabetes, obesity, polycystic ovary syndrome (PCOS), and other metabolic disorders.
HOMA-IR is calculated using fasting glucose and fasting insulin values. The exact formula and units used can vary depending on the laboratory and measurement system.
A higher HOMA-IR value may suggest reduced insulin sensitivity or insulin resistance. Interpretation should use the laboratory's reference range and consider the individual's clinical circumstances.
A lower value generally indicates better insulin sensitivity, although the result should be interpreted alongside fasting glucose, insulin, symptoms, and other metabolic findings.
No. HOMA-IR is not a standalone diagnostic test for diabetes. Tests such as fasting plasma glucose, HbA1c, or an oral glucose tolerance test are commonly used for diagnosis.
HOMA-IR may provide information about insulin resistance, but it does not independently diagnose prediabetes. Standard glucose-based tests are generally used to establish a prediabetes diagnosis.