Raynaud phenomenon is triggered by cold exposure in >95% of attacks. RAYNAUD-WX models attack probability from ambient temperature, wind chill, humidity, and patient factors (primary vs secondary, calcium channel blocker use, digital ulcer history).
Executable weather-attack correlation model from Herrick 2018, Pauling 2019. Correlation-based, not prospectively validated.
We implement a weather-based Raynaud attack frequency estimator using published temperature-attack correlations (Herrick 2018, Pauling 2019). The model takes ambient temperature, humidity, wind chill, and patient-specific factors (primary vs secondary, calcium channel blocker use, digital ulcer history) to estimate daily attack probability.