Psychometric validation and testing of the 10-item pediatric daily chest-related electronic patient reported outcome (ePRO) diary.

The findings demonstrate that the chest-related ePRO diary provides a valid, reliable, responsive measure of chest congestion symptoms experienced with the common cold in pediatric and adolescent populations, and that only minor differences are present in the disease trajectory when comparing adults to younger participants, supporting the use of the measure in interventional studies.