title: Prevalence of suicidal ideation in Chinese college students: a meta-analysis.
abstract: BACKGROUND
  About 1 million people worldwide commit suicide each year, and college students with suicidal ideation are at high risk of suicide. The prevalence of suicidal ideation in college students has been estimated extensively, but quantitative syntheses of overall prevalence are scarce, especially in China. Accurate estimates of prevalence are important for making public policy. In this paper, we aimed to determine the prevalence of suicidal ideation in Chinese college students.
  
  
  OBJECTIVE
  Databases including PubMed, Web of Knowledge, Chinese Web of Knowledge, Wangfang (Chinese database) and Weipu (Chinese database) were systematically reviewed to identify articles published between 2004 to July 2013, in either English or Chinese, reporting prevalence estimates of suicidal ideation among Chinese college students. The strategy also included a secondary search of reference lists of records retrieved from databases. Then the prevalence estimates were summarized using a random effects model. The effects of moderator variables on the prevalence estimates were assessed using a meta-regression model.
  
  
  RESULTS
  A total of 41 studies involving 160339 college students were identified, and the prevalence ranged from 1.24% to 26.00%. The overall pooled prevalence of suicidal ideation among Chinese college students was 10.72% (95%CI: 8.41% to 13.28%). We noted substantial heterogeneity in prevalence estimates. Subgroup analyses showed that prevalence of suicidal ideation in females is higher than in males.
  
  
  CONCLUSIONS
  The prevalence of suicidal ideation in Chinese college students is relatively high, although the suicide rate is lower compared with the entire society, suggesting the need for local surveys to inform the development of health services for college students.
authors.affiliation: Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, China.
authors.forename: Zhan-Zhan
authors.initials: ZZ
authors.lastname: Li
authors.affiliation: Department of Nursing, Central South University, Changsha, Hunan Province, China; The Second Affiliated Hospital, Xiangya Medical School, Central South University, Changsha, Hunan Province, China.
authors.forename: Ya-Ming
authors.initials: YM
authors.lastname: Li
authors.affiliation: The Second Affiliated Hospital, Xiangya Medical School, Central South University, Changsha, Hunan Province, China.
authors.forename: Xian-Yang
authors.initials: XY
authors.lastname: Lei
authors.affiliation: Department of Nursing, Central South University, Changsha, Hunan Province, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Zhang
authors.affiliation: Department of Nursing, Central South University, Changsha, Hunan Province, China.
authors.forename: Li
authors.initials: L
authors.lastname: Liu
authors.affiliation: Department of Nursing, Central South University, Changsha, Hunan Province, China.
authors.forename: Si-Yuan
authors.initials: SY
authors.lastname: Tang
authors.affiliation: Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, China.
authors.forename: Lizhang
authors.initials: L
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D044466:Asian People / Q000523:psychology* / Q000706:statistics & numerical data*; D002681:China / Q000453:epidemiology; D005260:Female; D006801:Humans; D008297:Male; D015995:Prevalence; D017594:Publication Bias; D012044:Regression Analysis; D013334:Students / Q000523:psychology*; D059020:Suicidal Ideation; D014495:Universities; D055815:Young Adult