GGT-to-Platelet Ratio (GPR)
GGT-to-platelet ratio (Lemoine 2016): (GGT/ULN)/platelets × 100; a cutoff of 0.32 predicts significant fibrosis.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- GGT
- 100 IU/L
- Upper limit of normal for GGT
- 50 IU/L
- Platelet count
- 200 ×10⁹/L
Result: GGT-to-platelet ratio 1 — at or above the 0.32 cutoff for significant fibrosis.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 0.32
- Below the significant-fibrosis cutoff.
- >= 0.32
- At or above the cutoff for significant fibrosis; higher cutoffs flag severe fibrosis / cirrhosis. A non-invasive marker, not a biopsy order.
What you enter
- GGT
- Upper limit of normal for GGT
- Platelet count
How this is calculated
Lemoine M, Shimakawa Y, Nayagam S, et al. The gamma-glutamyl transpeptidase to platelet ratio (GPR) predicts significant liver fibrosis and cirrhosis in patients with chronic HBV infection in West Africa. Gut. 2016;65(8):1369-1376. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.