The impact of problematic smartphone use on children's and adolescents' quality of life: A systematic review.

More research is needed regarding PSU and the outcome variables in children and adolescents. Also, a distinct and consistent theoretical conceptualisation of PSU is required to replicate findings, and to enhance comparability between studies. Based on the trend reported here, the development of customised, early on interventions for children and adolescents at risk of PSU is warranted.