Ehsani Index (Thalassemia vs Iron Deficiency)
Ehsani index: MCV − (10 × RBC); a value below ~15 favors beta-thalassemia trait over iron-deficiency anemia.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- MCV
- 65 fL
- RBC count
- 5.5 ×10¹²/L
Result: Ehsani index 10 — favors beta-thalassemia trait (cutoff 15).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 15
- Favors beta-thalassemia trait.
- > 15
- Favors iron-deficiency anemia. Index = MCV - (10 x RBC). A screen, not a diagnosis — confirm with electrophoresis and iron studies.
What you enter
- MCV
- RBC count
How this is calculated
Ehsani MA, Shahgholi E, Rahiminejad MS, Seighali F, Rashidi A. A new index for discrimination between iron deficiency anemia and beta-thalassemia minor: results in 284 patients. Pak J Biol Sci. 2009;12(5):473-475. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.