Time Spent on Social Media Applications in Relation to Depressive Symptoms During Emerging Adulthood and the Mediating Role of Sleep Quality: Cross-Sectional Observational Study

Qi Zou   ¹ , MD ;   Jiabi Qin   ^{2 *} , PhD ;   Lei Zhang   ^{3, 4 *} , PhD ;   Wenhua Wang   ⁴ , PhD ;   Xiaoxiao Yuan   ⁴ , MD ;   Tingting Wang   ¹ , PhD ;   Yuan Peng   ¹ , MD ;   Ye Chen   ¹ , MD ;   Linfei Dou   ⁵ , MD ;   Xinghua Yang   ⁵ , MD ;   Xirennayi Abudurexiti   ¹ , MD ;   Mingyang Wu   ^{5 *} , PhD

¹ Department of Epidemiology and Health Statistics, Xiangya School of Public Health, Central South University, Changsha, China

² Department of Maternal, Child and Adolescent Health, School of Public Health, Kunming Medical University, Kunming, China

³ Shaanxi Medical Association, Xi'an, Shaanxi, China

⁴ Shaanxi Provincial Health Industry Association Service Center, Xi'an, Shaanxi, China

⁵ Department of Maternal and Child Health, Xiangya School of Public Health, Central South University, Changsha, China

*these authors contributed equally