Enter risk factors
This educational calculator estimates relative allergy tendency. It does not diagnose disease or replace professional care.
Example data table
| Profile | Family history | Trigger count | Exposure level | Recovery hours | Estimated band |
|---|---|---|---|---|---|
| Office worker with mild spring symptoms | One relative | 2 | Occasional contact | 6 | Moderate |
| Lab worker with eczema and frequent flares | Several relatives | 5 | Daily repeated exposure | 24 | High |
| Pet owner with past severe food response | Strong family pattern | 7 | Daily repeated exposure | 48 | Very High |
Formula used
This calculator applies a weighted risk model. Each categorical factor adds points based on its relative influence. Numerical inputs create smaller adjustments for trigger count, recovery time, outdoor exposure, and pet contact frequency.
Weighted Base = age + family history + prior reaction + symptom pattern + related conditions + exposure + environment + occupation + smoke or pollution + diet variety + sleep and stress + medication use.
Adjustments = (trigger count × 1.5) + (recovery hours × 0.18, capped) + (outdoor hours × 0.5, capped) + (pet contact days × 0.65, capped).
Normalized Risk Score = (Raw Score ÷ 118.61) × 100.
The result is then grouped into Low, Moderate, High, or Very High bands. A resilience index is also shown to give a balancing perspective.
How to use this calculator
- Choose the options that best fit your age, history, symptoms, and environment.
- Enter counts or hours for known triggers, flare recovery, outdoor time, and pet contact.
- Press Calculate Allergy Risk to display the result above the form.
- Review the risk score, category, breakdown table, and pattern notes.
- Download the outcome as CSV or PDF if you want a saved record.
- Use repeated entries over time to compare changing exposure patterns.
FAQs
1. What does this calculator measure?
It estimates relative allergy risk by combining history, symptoms, exposure patterns, and related biological factors into one weighted score.
2. Is this a medical diagnosis?
No. It is an educational planning tool. Persistent, severe, or fast-worsening reactions need assessment by a qualified clinician.
3. Why does family history matter?
Family history can increase the likelihood of allergic tendencies because immune response patterns often cluster within families.
4. Why are prior reactions weighted strongly?
Past reactions provide direct evidence of sensitivity. Repeated or severe responses often predict higher future risk under similar exposure.
5. Can diet variety reduce the score?
Yes. In this model, broader stable dietary exposure can slightly lower risk scoring, while very narrow variety can increase it.
6. Why include sleep and stress?
Sleep loss and chronic stress may worsen symptom perception, recovery, and immune regulation, so the model treats them as amplifiers.
7. When should I export the result?
Export when you want to compare entries across weeks, discuss patterns with a clinician, or keep a symptom tracking record.
8. What score range is considered serious?
Higher scores suggest stronger combined risk signals. Any breathing difficulty, swelling, or systemic symptoms deserve prompt medical attention regardless of score.