Antiphospholipid Syndrome Sapporo/Sydney Criteria Score

Apply the revised Sapporo (Sydney 2006) classification criteria for antiphospholipid syndrome (APS). Requires ≥1 clinical criterion (thrombosis or pregnancy morbidity) plus ≥1 laboratory criterion (anticardiolipin, anti-β2GPI, or lupus anticoagulant).

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.
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How to Use

Enter the values for the scenario you are assessing. Apply the revised Sapporo (Sydney 2006) classification criteria for antiphospholipid syndrome (APS). Requires ≥1 clinical criterion (thrombosis or pregnancy morbidity) plus ≥1 laboratory criterion (anticardiolipin, anti-β2GPI, or lupus anticoagulant). Use the aps sapporo criteria result to inform your calculation.

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