Impact of the COVID-19 Pandemic on the Mental Health of College Students: A Systematic Review and Meta-Analysis.

Background: The coronavirus disease (COVID-19) pandemic has been spreading and brought unprecedented psychological pressure on people across the entire globe since December 2019.

Objective: To synthesize the existing evidence of the prevalence of mental health status during the epidemic and provide the basis for mental health education.

Methods: The literature search was conducted in nine databases from December 2019 to October 2020. The risk of bias for each study was assessed, and the random-effects meta-analysis was used to estimate the prevalence of specific mental health problems. The review protocol was registered in PROSPERO with the registration number CRD42020208619.

Results: About 27 studies were included in the analysis with a total of 706,415 participants combined, and 14 mental health problems were gathered. Meta-analysis showed that the prevalence of depression was 39% (95% CI: 27-51%) and that of anxiety was 36% (95% CI: 26-46%). Subgroup analysis indicated that the prevalence of depression and anxiety varied among nations and due to the survey date. The prevalence of depression (60%, 95% CI: 46-74%) and anxiety (60%, 95% CI: 46-74%) in non-Chinese college students was higher than those in Chinese college students (26%, 95% CI: 21-30% and 20%, 95% CI: 14-26%). The proportion of depression (54%, 95% CI: 40-67%) and anxiety (37%, 95% CI: 26-48%) was higher after March 1 than before it (21%, 95% CI: 16-25% and 19%, 95% CI: 13-25%).

Conclusions: The meta-analysis results presented that the prevalence of depression (39%) or anxiety (36%) among college students greatly increased during the COVID-19 pandemic. In addition, the mental health of college students is affected by the nations and the survey date. It was necessary to take measures to reduce mental health risks during the pandemic.