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.