Hereditary Hemochromatosis C282Y Phenotype Probability

Estimate clinical expression probability in HFE C282Y homozygous hereditary hemochromatosis using transferrin saturation, ferritin, age, and sex to predict who requires phlebotomy therapy.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Estimate clinical expression probability in HFE C282Y homozygous hereditary hemochromatosis using transferrin saturation, ferritin, age, and sex to predict who requires phlebotomy therapy

Each component has a specific meaning:

  • Transferrin saturation — The transferrin saturation recorded for the scenario being assessed.
  • Ferritin — The ferritin recorded for the scenario being assessed.
  • Age — The age recorded for the scenario being assessed.
  • Sex — The sex recorded for the scenario being assessed.

Note: Interpret the hh c282y phenotype result against the thresholds and context described above.

How to Use

Enter the transferrin saturation, ferritin, age, sex for the scenario you are assessing. Estimate clinical expression probability in HFE C282Y homozygous hereditary hemochromatosis using transferrin saturation, ferritin, age, and sex to predict who requires phlebotomy therapy. Use the hh c282y phenotype result to inform your calculation.

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