Objective@#To investigate the status of
insomnia,
Internet addiction, and
depressive symptoms among
medical students and to analyze the effect of
Internet addiction on
insomnia and the
mediating role of
depressive symptoms, in order to provide a basis for the development of targeted interventions and measurements for
medical students.@*
Methods@#A stratified whole group sampling
method was used to select full-
time college
students from three medical
universities in Anhui Province. The
Chinese version of
Insomnia Severity Index (ISI),
Internet Addiction Test (IAT) scale and 9-item
Patient Health Questionnaire (
PHQ-9) were used to evaluate the symptoms of
insomnia,
Internet addiction and depressive in
students. A multivariate
Logistic regression analysis was used to explore the factors influencing
insomnia among
medical students and to analyze the relationship between
insomnia with
Internet addiction and
depressive symptoms, respectively.@*Results@#The overall rate of
Internet addiction was 49.5%,
depressive symptoms was 39.5%,
insomnia was 18.6%. High academic stress, and the presence of surrounding people diagnosed with COVID-19 were associated with a higher
risk of
insomnia ( P <0.05). The higher the level of
Internet addiction (mild, OR =2.60; moderate/severe, OR =4.21) and
depression. (mild, OR =6.35; moderate/severe, OR =19.32), the higher the
risk of
insomnia. Mediated effect
analysis showed that
Internet addiction had a direct predictive effect ( β =0.02, P <0.05) on
insomnia and also indirectly affected
insomnia through
depression (indirect effect=0.07,95% CI =0.06-0.08).@*Conclusion@#The detected rates of
insomnia,
Internet addiction and
depressive symptoms are high among
medical students in Anhui Province, and
Internet addiction and
depressive symptoms are
risk factors for
insomnia, which should be given more
attention and appropriate interventions when necessary to improve their physical and
mental health.