Objective      To investigate influencing factors of attempted suicide and establish a structural equation model (SEM) on suicide attempts in college students

and to develop strategy of suicide prevention and crisis intervention.       Methods     

With stratified and cluster sampling method

9 808 college students with and without suicide attempts in Chongqing were surveyed to analyze the differences in the scale of public attitudes about suicide (SPAS)

suicide ideation scale (SIS)

impulsive behavior scale (IBS)

quality of life (QOL)

social support scale (SSS)

and modified overt aggression scale (MAOS). A multiple logistic regression model was used to identify the main risk factors influencing attempted suicide in college students

and to construct a structural equation model.       Results      The total screening rate of suicide attempts of college students in Chongqing was about 1.7%. There were statistical differences in gender (

P

0.05)

family economic status (

P

=0.042)

SIS (

P

0.05)

IBS (

P

0.05)

QOL (

P

=0.02)

SSS (

P

0.05) and MAOS (

P

0.05)

but no difference in SPAS (

P

=0.17). The multiple stepwise regression analysis showed that the main risk factors of suicide attempts were gender (OR=2.065

95%CI 1.450 to 2.925)

family economic status (OR=1.423

95%CI 1.062 to 1.903)

SIS (OR=1.269

95%CI 1.054 to 1.529)

motor impulsiveness (OR=1.013

95% CI 1.002 to 1.024)

physical condition (OR=0.815

95%CI 0.772 to 0.862)

subjective support (OR=0.998

95% CI 0.990 to 1.006)

utilization of social support (OR=0.982

95% CI 0.970 to 0.990)

level of verbal aggression (OR=1.019

95% CI 1.007 to 1.031)

and level of aggression to self (OR=1.026

95% CI 1.005 to 1.084).       Conclusion      The main influencing factors of suicide attempts among college students in Chongqing are gender

family economic status

suicidal ideation and physical condition. Moreover

suicidal ideation is a mediator in the occurrence of suicide and has prominent effects on prediction of suicide attempts.