Febrile Seizure Recurrence Risk

Estimate febrile seizure recurrence risk using age at first seizure, family history, fever height, and complex features of the index seizure.

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 It Works

Estimate febrile seizure recurrence risk using age at first seizure, family history, fever height, and complex features of the index seizure

Each component has a specific meaning:

  • Age at first seizure — The age at first seizure recorded for the scenario being assessed.
  • Family history — The family history recorded for the scenario being assessed.
  • Fever height — The fever height recorded for the scenario being assessed.
  • Complex features of the index seizure — The complex features of the index seizure recorded for the scenario being assessed.

Note: Interpret the febrile seizure risk result against the thresholds and context described above.

How to Use

Enter the age at first seizure, family history, fever height, complex features of the index seizure for the scenario you are assessing. Estimate febrile seizure recurrence risk using age at first seizure, family history, fever height, and complex features of the index seizure. Use the febrile seizure risk result to inform your calculation.

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Frequently Asked Questions