The temporal relationships between sleep, cortisol, and lung functioning in youth with asthma.

摘要

OBJECTIVES: This study tested the directionality of the association between sleep and health outcomes in youth with asthma. METHOD: Thirty-eight youth with asthma (aged 9-19) completed a daily diary study on sleep, asthma symptoms, peak expiratory flow (PEF) measures, and salivary cortisol samples. RESULTS: Greater quantity of sleep predicted lower PEF% [beta(32) = -.33, p =.02], and lower daily cortisol output [beta(33) = -.31, p =.07] the following day. Additionally, poorer self-reported sleep quality predicted more severe symptoms the next day [beta(33) .27, p significantly predict self-reported sleep quantity or quality the next night. CONCLUSIONS: Results suggest that sleep may affect subsequent health outcomes, rather than asthma impacting subsequent sleep, indicating the potential benefits of targeting sleep behaviors in youth with asthma.