Functional and dysfunctional impulsivity and attempted suicide in rural China: A paired case-control study.
This study aimed to clarify the relationship between functional and dysfunctional impulsivity and attempted suicide in rural China. Data of this study came from the investigation of 407 suicide attempters and their paired non-suicide attempters matched with the same gender, age (±3 years) and residence area in six counties in rural Shandong, China. Suicide attempters accounted for a lower proportion on high functional impulsivity, but a higher proportion on high dysfunctional impulsivity than non-suicide attempters. Dysfunctional impulsivity in the male denoted a significant risk factor for attempted suicide, even after adjustment for psychiatric disorder and demographic factors. Suicide attempters with high dysfunctional impulsivity had a higher percent of family suicide history than those with low dysfunctional impulsivity. High functional impulsivity was a significant protective factor for attempted suicide in the group aged 35-59 years, but a significant risk factor in the group aged 15-34 years. Suicide attempters with low functional impulsivity had poorer economic status and older age than those with high functional impulsivity. Our findings support the key roles of functional and dysfunctional impulsivity in attempted suicide among rural residents of China.
Department of Epidemiology, Shandong University School of Public Health & Shandong University Center for Suicide Prevention Research, Jinan, China.
Yang-Yang
YY
Liu
Department of Epidemiology, Shandong University School of Public Health & Shandong University Center for Suicide Prevention Research, Jinan, China.
Xin-Ting
XT
Wang
Shandong Provincial Center for Mental Health, Jinan, China.
Hui-Min
HM
Qiu
Shandong Provincial Center for Disease Control and Prevention, Jinan, China.
Ai-Qiang
AQ
Xu
Department of Epidemiology, Shandong University School of Public Health & Shandong University Center for Suicide Prevention Research, Jinan, China. Electronic address: jiacunxian@sdu.edu.cn.
Cun-Xian
CX
Jia
D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D002681:China; D003710:Demography; D005260:Female; D006801:Humans; D007175:Impulsive Behavior; D008297:Male; D008875:Middle Aged; D065840:Protective Factors; D012307:Risk Factors; D012424:Rural Population / Q000706:statistics & numerical data; D012959:Socioeconomic Factors; D013406:Suicide, Attempted / Q000523:psychology*; D055815:Young Adult
Age; Attempted suicide; China; Dysfunctional impulsivity; Functional impulsivity; Gender