There Is No Difference in IQ between Suicide and Non-Suicide Psychiatric Patients: A Retrospective Case-Control Study.
- Author:
Sung Jin PARK
1
;
Kikyoung YI
;
Joon Deuk LEE
;
Jin Pyo HONG
Author Information
- Publication Type:Original Article
- Keywords: IQ; Completed suicide; Case-control study; Intelligence
- MeSH: Adult; Case-Control Studies*; Hospitals, General; Humans; Intelligence; Korea; Logistic Models; Mental Disorders; Retrospective Studies*; Seoul; Suicide*
- From:Psychiatry Investigation 2015;12(3):330-334
- CountryRepublic of Korea
- Language:English
- Abstract: OBJECTIVE: The goal of this study was to examine the association between IQ and suicide in psychiatric patients. METHODS: We conducted a nested case-control study using data obtained from psychiatric patients affiliated with a general hospital in Seoul, Korea. In a one-to-two ratio the psychiatric patients who died of suicide (Suicide Group; n=35) were matched to those who didn't (Non-suicide Group; n=70) by age, gender, psychiatric diagnosis and approximate time of first treatment. IQ was measured using the Korean version of the Wechsler Adult Intelligence Scale-Revised. RESULTS: There were no significant differences in any type of IQ between suicide patients and non-suicide patients. Logistic regression showed no evidence of an association between IQ and suicide. CONCLUSION: These results do not support the existence of an association between IQ and suicide.
