title: Prevalence of suicide attempts among Chinese adolescents: A meta-analysis of cross-sectional studies.
abstract: OBJECTIVE
  According to World Health Organization, for every committed suicide there were 20 suicide attempts at least. In the last decade, despite the increasing awareness on suicide attempts among adolescents in China, there has been no comprehensive system reporting vital statistics. Consequently, the prevalence of suicide attempts reported in some studies ranged variedly. Therefore, the purpose of this study was to provide the first meta-analysis of cross-sectional studies of suicide attempts to fill this gap.
  
  
  METHODS
  Two reviewers independently screened potentially relevant cross-sectional studies of suicide attempts through PubMed-Medline, Embase, Wanfang Data, Chongqing VIP and Chinese National Knowledge Infrastructure databases using the core terms 'suicid*'/'suicide attempt*'/'attempted suicide' and 'adolescen*'/'youth'/'child*'/'student*' and 'China'/'Chinese' in the article titles, abstracts and keywords. Chi-square based Q test and I(2) statistic assessed the heterogeneity. Forest plot was used to display results graphically. Potential publication bias was assessed by the funnel plot, Begg's and Egger's test.
  
  
  RESULTS
  In total, 43 studies with 200,124 participants met the eligibility criteria. The pooled prevalence of suicide attempts among Chinese adolescents was 2.94% (95% CI: 2.53%-3.41%). Substantial heterogeneity in prevalence estimates was revealed. Subgroup analyses showed that the prevalence for males was 2.50% (95% CI: 2.08%-3.01%), and for females was 3.17% (95% CI: 2.56%-3.91%).
  
  
  CONCLUSIONS
  In sum, abstracting across the literatures, the prevalence of suicide attempts among Chinese adolescents was moderate compared with other countries around the world. Necessary measures should be set out prevent them in the future.
authors.affiliation: Nanhui Mental Health Center, Pudong New Area, Shanghai, 201300, China.
authors.forename: Jiande
authors.initials: J
authors.lastname: Hu
authors.affiliation: Jiangxi Provincial Center for Disease Control and Prevention, Nanchang, 330029, China. Electronic address: dyhai123@126.com.
authors.forename: Yonghai
authors.initials: Y
authors.lastname: Dong
authors.affiliation: Jiangxi Provincial Cancer Hospital, 519 Beijing East Road, Nanchang 330029, Jiangxi, China.
authors.forename: Xiaodan
authors.initials: X
authors.lastname: Chen
authors.affiliation: Cadre Wards of Neurology Medicine, Jiangxi Provincial People's Hospital, Nanchang, 330006, China.
authors.forename: Yun
authors.initials: Y
authors.lastname: Liu
authors.affiliation: Nanhui Mental Health Center, Pudong New Area, Shanghai, 201300, China.
authors.forename: Dongyang
authors.initials: D
authors.lastname: Ma
authors.affiliation: Cadre Wards of Neurology Medicine, Jiangxi Provincial People's Hospital, Nanchang, 330006, China.
authors.forename: Xiaoyun
authors.initials: X
authors.lastname: Liu
authors.affiliation: School of Public Health, Zhejiang University, Hangzhou, 310058, China.
authors.forename: Ruizhi
authors.initials: R
authors.lastname: Zheng
authors.affiliation: Jiangxi Provincial Center for Disease Control and Prevention, Nanchang, 330029, China.
authors.forename: Xiangqun
authors.initials: X
authors.lastname: Mao
authors.affiliation: Jiangxi Provincial Center for Disease Control and Prevention, Nanchang, 330029, China.
authors.forename: Ting
authors.initials: T
authors.lastname: Chen
authors.affiliation: Jiangxi Provincial Center for Disease Control and Prevention, Nanchang, 330029, China.
authors.forename: Wei
authors.initials: W
authors.lastname: He
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior; D044466:Asian People / Q000706:statistics & numerical data*; D002681:China / Q000453:epidemiology; D003430:Cross-Sectional Studies; D006801:Humans; D015995:Prevalence; D013406:Suicide, Attempted / Q000706:statistics & numerical data*