Associations Between Incident Asthma With Comorbidity Profiles, Night Sleep Duration, and Napping Duration Trajectories: A 7-Year Prospective Study

We aim to determine whether comorbidity profiles, night sleep duration, and napping duration trajectories were associated with incident asthma in Chinese adults. A total of 7,655 community-dwelling individuals were included in this study. Latent class/profile analysis(LCA/LPA) identified comorbidity profiles, night sleep duration, and napping duration trajectories. A generalized additive model with binomial regression assessed the associations between incident asthma with sleep trajectories. During a 7-year follow-up period, 205 individuals were newly diagnosed with asthma. LPA identified four trajectories of night sleep duration: dominant short ( = 2,480), dominant healthy-long ( = 1,405), long decreasing ( = 1875), and short increasing ( = 1895). We also found three trajectories of napping duration: short increasing ( = 3,746), stable normal ( = 1,379), and long decreasing ( = 2,530). We found three comorbidity profiles: dominant heart diseases or risks ( = 766), multiple disorders ( = 758), and minimal or least disorders ( = 6,131). Compared with dominant short night sleep duration, three other trajectories were associated with significantly decreasing incident asthma. Minimal or least disorders profile was associated with a significant reduction of new-onset asthma than two other comorbidity profiles in dominant short night sleep duration. Our findings suggested that a dominant short night sleep duration trajectory potentially increases incident asthma in Chinese adults.