Objectives
Mental health disorders are highly prevalent among university students. Universities could be an optimal setting to provide evidenceâbased care through the Internet. As part of the World Mental Health International College Student initiative, this systematic review and metaâanalysis synthesizes data on the efficacy of Internetâbased interventions for university students' mental health.
Method
A systematic literature search of bibliographical databases (CENTRAL, MEDLINE, and PsycINFO) for randomized trials examining psychological interventions for the mental health (depression, anxiety, stress, sleep problems, and eating disorder symptoms), wellâbeing, and functioning of university students was performed through April 30, 2018.
Results
Fortyâeight studies were included. Twentyâthree studies (48%) were rated to have low risk of bias. Small intervention effects were found on depression (g = 0.18, 95% confidence interval [CI; 0.08, 0.27]), anxiety (g = 0.27, 95% CI [0.13, 0.40]), and stress (g = 0.20, 95% CI [0.02, 0.38]). Moderate effects were found on eating disorder symptoms (g = 0.52, 95% CI [0.22â0.83]) and role functioning (g = 0.41, 95% CI [0.26, 0.56]). Effects on wellâbeing were nonâsignificant (g = 0.15, 95% CI [â0.20, 0.50]). Heterogeneity was moderate to substantial in many analyses. After adjusting for publication bias, effects on anxiety were not significant anymore.
Discussion
Internet interventions for university students' mental health can have significant smallâtoâmoderate effects on a range of conditions. However, more research is needed to determine student subsets for which Internetâbased interventions are most effective and to explore ways to increase treatment effectiveness.