Suicidality and unhealthy weight control behaviors among female underaged psychiatric inpatients.

OBJECTIVE: The aim of this study was to investigate whether unhealthy weight control behaviors, fear of becoming obese, binge eating, impulsivity, and body mass index are associated with suicide ideation, repetitive self-mutilative behavior (SMB), suicide attempts, or both suicide attempts and SMB among female adolescent psychiatric inpatients.

METHODS: Data were drawn from a clinical inpatient cohort of female adolescents (N = 300, aged 12-17 years) consecutively admitted for psychiatric hospitalization between April 2001 and March 2006. Information on adolescents' suicidal behavior, psychiatric Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV), diagnoses and weight control behaviors was obtained using the Schedule for Affective Disorder and Schizophrenia for School-Age Children Present and Lifetime (K-SADS-PL).

RESULTS: Even after adjustment with DSM-IV, affective, anxiety and eating disorders self-induced vomiting was significantly associated with SMB and suicide attempts with SMB. Impulsivity was related to suicide attempts with SMB. Excessive exercising was a significant finding only in those girls who had attempted suicide. Girls who had attempted suicide were more often overweight compared with girls without suicidal behavior.

CONCLUSION: Unhealthy weight control behaviors among adolescent girls were found to be strongly associated with suicidal behavior. Girls with a history of both suicide attempts and SMB seem to be the most disturbed group, with multiple weight loss methods and impulsivity. Girls who are overweight or exercise excessively may represent risk groups for attempted suicide.