RESUMO
BACKGROUND: While sleep problems are common in adolescents with depression, the exact prevalence has not been reported. Although previous studies have shown that childhood trauma, alexithymia, rumination, and self-esteem are related to sleep problems, the interactions between these factors remain unclear. METHODS: This study, conducted from March 1, 2021 to January 20, 2022, employed a cross-sectional design. The participants were 2192 adolescents with depression with a mean age of 15 years. The Chinese version of the Pittsburgh Sleep Quality Index, Childhood Trauma Questionnaire, Toronto Alexithymia Scale-20, Ruminative Response Scale, and Rosenberg Self-Esteem Scale were used to measure sleep problems, childhood trauma, alexithymia, rumination, and self-esteem, respectively. We used PROCESS 3.3 for SPSS to determine the chain mediating effect of alexithymia and rumination and the moderating effect of self-esteem in the relationship between childhood trauma and sleep problems. RESULTS: Up to 70.71 % of adolescents with depression had sleep problems. Furthermore, alexithymia and rumination played a chain mediation role in the relationship between childhood trauma and sleep problems. Finally, self-esteem moderated the relationships between alexithymia and sleep problems and rumination and sleep problems. LIMITATIONS: Owing to the study design, we cannot derive causal relationships between variables. Further, the self-reported data may have been influenced by subjective participant factors. CONCLUSIONS: This study reveals potential ways of how childhood trauma influences sleep problems in adolescents with depression. These findings suggest that interventions targeting alexithymia, rumination, and self-esteem in adolescents with depression may be effective in reducing their sleep problems.
