Continuous passive cough monitoring demonstrates the heterogeneous and stochastic pattern of persistent cough and that 24 hour counts often inaccurately reflect longer term cough rates.
The most commonly employed method of cough monitoring in clinical trials quantifies cough over 24 hour periodspre and post interventions. However, because cough is stochastic, intermittent measures of cough may not accurately reflectlonger term trends. Hyfe consumer cough tracking apps use acoustic AI to continually and passively monitor coughing. Wereviewed cough data from app users with persistent cough, applied novel statistical methods to demonstrate the day-to-dayvariability of the cough count and derived scores that quantifies how well any given day predicts longer term trends