Nocturnal asthma symptoms and poor sleep quality among urban school children with asthma.

Objective: The aim of this study was to describe nocturnal asthma symptoms among urban children with asthma and assess the burden of sleep difficulties between children with varying levels of nocturnal symptoms.

Methods: We analyzed baseline data from 287 urban children with persistent asthma (aged 4-10 years) enrolled in the School-Based Asthma Therapy trial; Rochester, New York. Caregivers reported on nocturnal asthma symptoms (number of nights/2 weeks with wheezing or coughing), parent quality of life (Juniper's Pediatric Asthma Caregivers Quality of Life Questionnaire), and sleep quality by using the validated Children's Sleep Habits Questionnaire.