Prevalence, correlates of major depression: A mental health survey among undergraduates at a mainland Chinese university.

INTRODUCTION: This cross-sectional survey among Chinese university students aimed to estimate the prevalence and risk factors of major depressive disorder (MDD) among undergraduates, in order to provide basic information for the prevention and treatment of depression among the college-aged population.

METHODS: A total of 2,046 undergraduates were interviewed face to face using the World Health Organization Composite International Diagnostic Interview Version 3.0 (WHO-CIDI, version 3.0). Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) criteria were used to diagnose MDD. Logistic regression was used to evaluate the associations between MDD and selected correlates.

RESULTS: The survey response rate was 90.1% (N = 1,843). The prevalence rates of MDD were 3.9% (lifetime), 2.4% (12 months) and 0.4% (30 days). No significant gender or age differences were found in prevalence rates. No sociodemographic characteristics were related to the lifetime prevalence of MDD. In contrast, family structure and environment factors specifically being from a single-parent family (odds ratio [OR] = 2.513, confidence interval [CI] = 1.404-2.500), parents having mental problems (OR = 1.809, CI = 1.104-2.964), and physical punishment (OR = 1.789, CI = 1.077-3.001) were associated with higher lifetime prevalence of MDD.

DISCUSSION: These findings showed a relatively lower prevalence of DSM-IV/CIDI MDD in this sample of Chinese undergraduates than that reported for students in other countries. However, the prevalence rate for university students was higher than that reported for general Chinese population. Family structure and socio-environmental factors in the student's family of origin significantly correlated with the lifetime prevalence of MDD.