⚡ Recurrence Risk by Age and Family History Simulator

Younger Age at First Febrile Seizure

Younger onset age is a leading recurrence predictor.

• ~50%: Onset <12mo recurrence (placeholder estimate)
• ~20%: Onset >36mo recurrence (placeholder estimate)
• 12–18mo: Peak incidence age (placeholder range)
• High: Risk weight (placeholder weighting)

Why younger age raises risk

Placeholder text: immature seizure threshold at younger ages.

Family History of Febrile Seizures

A positive family history increases recurrence likelihood.

• ~30%: With family history (placeholder estimate)
• ~15%: Without family history (placeholder estimate)
• Strongest link: First-degree relative (placeholder note)
• Moderate: Risk weight (placeholder weighting)

Genetic and familial patterns

Placeholder text: heritable seizure threshold susceptibility.

Lower Fever at Seizure Onset

Seizures at lower temperatures suggest lower thresholds.

• <38.5°C: Low-grade trigger (placeholder cutoff)
• >39.5°C: High-grade trigger (placeholder cutoff)
• Elevated: Lower fever recurrence (placeholder trend)
• Moderate: Risk weight (placeholder weighting)

Fever threshold sensitivity

Placeholder text: lower thermal trigger implies lower seizure threshold.

Combined Risk Factor Accumulation

Individual factors combine into one accumulated risk score.

• 3: Factors combined (age, history, fever)
• Additive: Weighting model (placeholder model)
• 0–100%: Score range (placeholder scale)
• Live: Update speed (placeholder note)

Accumulation methodology

Placeholder text: weighted sum of independent risk contributions.

Overall Recurrence Probability Estimate

Final probability supports counseling and follow-up planning.

• <25%: Low risk band (placeholder cutoff)
• 25–50%: Moderate risk band (placeholder cutoff)
• >50%: High risk band (placeholder cutoff)
• Counseling tier: Output (placeholder note)

Using the probability estimate

Placeholder text: guides monitoring intensity and family counseling.

Placeholder: discuss estimate with a pediatric clinician.