title: Measurement of total serum cholesterol in the evaluation of suicidal risk.
abstract: BACKGROUND
  Many studies have demonstrated an association between suicidal behavior and low levels of total serum cholesterol. To our knowledge, this association has mainly been reported in men. This case-control study was undertaken to assess the association between serum cholesterol level and suicide attempts in both genders.
  
  
  METHODS
  A total of 3207 subjects was included, divided into three groups: 510 patients with a history of suicidal attempts, 275 patients with no history of suicidal attempts, and 2422 controls. Mean and quartile total cholesterol levels were compared between the three groups according to gender. ROC curves were drawn to determine the biologically relevant threshold.
  
  
  RESULTS
  After adjustment for age, cholesterol level was significantly lower (p<0.01) in suicide attempters than in non-attempters and controls for both genders. Male non-suicide attempters had similar cholesterol levels to controls (p=0.7), but the levels in female non-attempters were significantly higher (p=0.004). The proportion of suicide attempters in the lowest cholesterol level quartile (51.3% of men, 40.1% of women) was significantly higher than that in the highest quartile (8.1% of men, 12.4% of women). For triglyceride level, no difference was found between the three groups, suggesting that this association was not due to malnutrition linked to depression.
  
  
  CONCLUSIONS
  The effect of acute or chronic administration of medications on serum cholesterol levels was not controlled. Psychiatric history in surgical controls was not recorded.
  
  
  CONCLUSIONS
  Total serum cholesterol levels measured at admission may be a useful biological marker of suicidal risk.
authors.affiliation: Université Montpellier 1, Montpellier, France.
authors.forename: Emilie
authors.initials: E
authors.lastname: Olié
authors.forename: Marie Christine
authors.initials: MC
authors.lastname: Picot
authors.forename: Sébastien
authors.initials: S
authors.lastname: Guillaume
authors.forename: Mocrane
authors.initials: M
authors.lastname: Abbar
authors.forename: Philippe
authors.initials: P
authors.lastname: Courtet
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D002784:Cholesterol / Q000097:blood*; D002788:Cholesterol Esters / Q000097:blood; D008078:Cholesterol, LDL / Q000097:blood; D003863:Depression / Q000097:blood; D003866:Depressive Disorder / Q000097:blood / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000097:blood; D008875:Middle Aged; D012306:Risk; D012307:Risk Factors; D012737:Sex Factors; D013405:Suicide / Q000706:statistics & numerical data*; D013406:Suicide, Attempted / Q000523:psychology
chemical_list: D002788:Cholesterol Esters; D008078:Cholesterol, LDL; D002784:Cholesterol