The relationship between worry tendency and sleep quality in Chinese adolescents and young adults: the mediating role of state-trait anxiety.

To investigate the relationship between worry tendency and sleep quality and the mediating effect of state-trait anxiety, 1072 adolescents and young adults from Jiangxi and Fujian Provinces in China were administered questionnaires pertaining to worry tendency, sleep quality, and state-trait anxiety. The results showed significant grade differences for worry tendency, sleep quality, and state-trait anxiety. Worry tendency was negatively associated with sleep quality, which was mediated by state anxiety and trait anxiety. There is a need for interventions that aim to reduce the level of worry tendency to ensure good sleep quality and the progression from worry tendency to anxiety and to poor sleep quality.