title: [Study on the factors influencing suicidal ideation among medical students in Beijing].
abstract: OBJECTIVE
  To evaluate the effects of personality-related health risk factors on suicidal ideation among medical students.
  
  
  METHODS
  1204 medical students at first grade were selected in Beijing, using random cluster sampling method. Data were obtained through health risk behaviors questionnaire, personality diagnostic questionnaire-4 (PDQ-4) and were analyzed by logistic regression method.
  
  
  RESULTS
  There were 12 risk factors selected from single factor analysis, including physical fight, physical abuse, physically forced to have sexual intercourse, sexual risk behaviors, tobacco and alcohol use behaviors, loneliness, bad mood, insomnia, feeling hopeless, higher PDQ-4 score and internet abuse behaviors. Data from Unconditional logistic regression showed that the main risk factors of suicide ideation were insomnia (OR = 4.98), physical abuse (OR = 4.43), sexual risk behaviors (OR = 2.63), bad mood (OR = 2.32), feeling hopeless (OR = 1.98), higher PDQ-4 score (OR = 1.09) in male students; while fighting (OR = 7.10), loneliness (OR = 4.42), physically forced to have sexual intercourse (OR = 4.19), internet abuse behaviors( OR = 1.39) in female students.
  
  
  CONCLUSIONS
  Suicidal ideation was associated with various factors, with significant gender difference.
authors.affiliation: Department of Social Medicine and Health Education, School of Public Health, Peking University, Beijing 100083, China.
authors.forename: Bao-Hua
authors.initials: BH
authors.lastname: Liu
authors.forename: Yue-Qin
authors.initials: YQ
authors.lastname: Huang
authors.forename: Wen-Yi
authors.initials: WY
authors.lastname: Niu
authors.forename: Zi-Zhi
authors.initials: ZZ
authors.lastname: Lv
authors.forename: Chuan
authors.initials: C
authors.lastname: Yue
authors.forename: Pei-Yu
authors.initials: PY
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D000328:Adult; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D012307:Risk Factors; D013337:Students, Medical / Q000523:psychology*; D013405:Suicide / Q000523:psychology*; D055815:Young Adult