Research prototype—not for clinical diagnosis or treatment. BRPI has not yet been trained or validated in patient cohorts. The displayed probabilities and thresholds are illustrative. This application must not delay urgent assessment, endoscopy, reflux monitoring, cardiac evaluation, or other clinically indicated care.

About this demonstrator

The Bivariate Reflux Probability Instrument (BRPI) concept treats symptom frequency and intensity as separate predictors, including interaction terms, inside a transparent illustrative logistic equation.

This web application implements Phases 1–2 of the research demonstrator: illustrative reference case reproduction, interactive fictional entry, safety override, contributor explanation, and illustrative plots. It is not a validated clinical prediction model.

Return to home