Insomnia mediates the longitudinal relationship between anxiety and depressive symptoms in a nationally representative sample of adolescents

Background Anxiety and depression are commonly comorbid with each other, with anxiety often temporally preceding the development of depression. Although increasingly research has begun to investigate the role of sleep problems in depression, no study has examined insomnia as a mediator in the longitudinal relationship between anxiety and subsequent depression. Methods The current study utilizes data from Waves I, II, and IV of the National...