Effects of Social Anxiety and Subjective Well-Being on Problematic Mobile Social Media Use in First-Year University Students: The Mediating Role of Self-Esteem.

Background: Problematic mobile social media use may impact college students' physical and mental health. This study aimed to elucidate the impact of social anxiety and subjective well-being on problematic mobile social media use and the mediating role of self-esteem in this relationship. Methods: A total of 387 first-year university students (39.8% females, 60.2% males; mean age = 18.74 years) were enrolled in this study and completed self-report measures of social anxiety, subjective well-being, self-esteem and problematic mobile social media use. A structural equation model was constructed and tested by AMOS 23.0 software. Results: (1) Social anxiety not only had a direct effect on problematic mobile social media use, but also had an indirect effect on problematic mobile social media use via self-esteem. (2) Subjective well-being was positively and significantly associated with self-esteem, as well as problematic mobile social media use. (3) Self-esteem played a suppressing role between subjective well-being and problematic mobile social media use. Conclusions: It is necessary to help college students reduce their social anxiety and increase their subjective happiness through appropriate ways, as this plays an important role in increasing self-esteem and reducing their problematic mobile social media use.