Association between Daily Stress, Sleep Duration, and Attention-Deficit or Hyperactivity Problems among Teenagers: Focusing on the Moderated Mediating Effect of Positive Family Relationships

Background: This study investigated the association between daily stress, sleep duration, and attention-deficit or hyperactivity problems (ADH) among teenagers and the moderated mediating effect of positive family relationships.Methods: The data of a nationally representative sample of teenagers were analyzed using regression analyses.Results: Daily stress was positively associated with ADH. Sleep duration partially mediated the association between daily stress and ADH. Positive family relationships moderated the mediating effect of sleep duration. Specifically, the mediating effect decreased with increasing levels of positive family relationships.Conclusions: Based on its results, this study discusses ways to intervene in ADH among teenagers.