Hemophilia Joint Health Score (Pettersson Radiological Score)

Calculates the Pettersson radiological score for hemophilic arthropathy, annual bleeding rate on prophylaxis, and factor activity trough level targets for severe hemophilia A and B.

Weight
Height
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.
Advertisement

How to Use

Enter the values for the scenario you are assessing. Calculates the Pettersson radiological score for hemophilic arthropathy, annual bleeding rate on prophylaxis, and factor activity trough level targets for severe hemophilia A and B. Use the hemophilia joint score result to inform your calculation.

Related Calculators

Sickle Cell Pain Score

Medical Calculators

Thalassemia Iron Overload

Medical Calculators

VWD ISTH-BAT

Medical Calculators

Frequently Asked Questions