Prevalence of depressive symptoms in primary school students in China: A systematic review and meta-analysis.

BACKGROUNDS: Depression in children and adolescents is usually under-recognized. The findings of epidemiological studies on depressive symptoms in primary school students are inconsistent across studies. This study reports a systematic review and meta-analysis on the prevalence of depressive symptoms in primary school students in China. METHODS: Literature search was performed in both international (PubMed, PsycINFO, EMBASE) and Chinese (China National Knowledge Internet, WANFANG Data and Chinese Biological Medical Literature) databases. The random-effects model was used to analyze data. RESULTS: Twenty-seven studies involving 42,374 subjects were included. The pooled prevalence of depressive symptoms in Chinese primary school students was 17.2% (95% CI: 14.3%-20.5%). Subgroup analyses found that the prevalence significantly varied between geographic regions, with western China reporting the highest prevalence. Meta-regression analyses found that year of survey and study quality were significantly associated with the prevalence of depressive symptoms. CONCLUSIONS: Given the high prevalence of depressive symptoms and its negative health outcomes, preventive measures, regular screening and effective treatments need to be implemented for this population.

Prevalence of depressive symptoms in children and adolescents in China: A meta-analysis of observational studies.

Depressive symptoms are common in children and adolescents. The prevalence of depressive symptoms in children and adolescents in China vary significantly across studies. A meta-analysis of the prevalence of depressive symptoms in children and adolescents in China was conducted. Literature search was performed in both English (PubMed, PsycINFO and EMBASE) and Chinese (China National Knowledge Internet, WANFANG Data and SinoMed) databases. Random-effects model was used to synthesize the prevalence of depressive symptoms. Eighteen studies covering 29,626 participants were identified and analyzed. All these studies used the same measurement to identify depressive symptoms. The reported point prevalence of depressive symptoms ranged between 4% and 41% in the studies; the pooled prevalence of depressive symptoms was 19.85% (95% confidence interval: 14.75%-24.96%). In the subgroup analyses the prevalence of depressive symptoms was significantly associated with the region where the study was conducted: 17.8% in eastern, 23.7% in central, 22.7% in western, and 14.5% in northeast regions of China (P < 0.001). Considering the adverse impact of depressive symptoms on health outcomes, regular screening and effective interventions should be implemented in this population.

Prevalence of major depressive disorder in children and adolescents in China: A systematic review and meta-analysis.

BACKGROUND: Prevalence figures of major depressive disorder (MDD) in children and adolescents across various epidemiological studies have been inconclusive. This is a systematic review and meta-analysis of the pooled prevalence of MDD and its associated factors in children and adolescents in China. METHOD: A systematic review and literature search were conducted covering PubMed, PsycINFO, EMBASE and Chinese databases (China National Knowledge Internet, WANFANG Data and SinoMed) to identify studies reporting the prevalence of MDD in children and adolescents in China. The pooled prevalence estimates and associated factors were examined using the Comprehensive Meta-Analysis program, Version 2. RESULTS: Fourteen studies involving 82,592 subjects were included in this meta-analysis. The pooled point prevalence of MDD in Chinese children and adolescents was 1.3% (95% CI: 0.8%-2.0%). Subgroup and meta-regression analyses revealed that diagnostic criteria, age, year of survey and study quality were significantly associated with the prevalence of MDD. CONCLUSIONS: The point prevalence of MDD in children and adolescents in China is similar to worldwide figures. Further national epidemiological studies with the view of developing effective intervention strategies should be considered.