Problematic smartphone use and functional somatic symptoms among adolescents: Mediating roles of depressive symptoms and peer relationships by gender.

This study explored the relationship between problematic smartphone use and depressive symptoms, peer relationships, and functional somatic symptoms with a representative sample of Korean male and female adolescents using serial multiple mediation models. The results identified the mediating effect of depressive symptoms and peer relationships for males in the association between problematic smartphone use and FSS. The serial mediating effect of the two mediators was also verified in the model for males. However, in the model for females, only depressive symptoms mediated the relationship between problematic smartphone use and FSS. The findings suggest that parents and professionals should assess adolescents with problematic smartphone use for the risk of FSS when depressive symptoms develop. Schools should also provide programs to build positive peer relationships to reduce FSS.