A scoping review of the literature reporting on smartphone use and parameters of mental health from January 2008 to February 2018 was performed for the purpose of summarizing and describing current research findings regarding the association of smartphone use with anxiety, depression, stress, and sleep of college students. The study followed the Preferred Reporting Items for Systematic reviews and Meta-Analyses for Protocols 2015 (PRISMA-P 2015) guidelines. Thirty-one articles met protocol crite...