Abstract:Objective To estimate the prevalence and risk factors of suicide ideation,suicide planning and suicide attempts among middle school students and to provide reference for suicide intervention.Methods The students of grade 7 to 12 in Ningbo were recruited through multi-stage random sampling method. A self-reported questionnaire survey was conducted to collect the information about suicide ideation,suicide planning and suicide attempts within 12 months. A multivariate logistic regression model was used to analyze the risk factors for the three aspects of suicide among middle school students.Results A total of 10 729 questionnaires were sent out and 10 726 valid ones were collected,with a validity rate of 99.97%. The prevalence rates of suicide ideation,suicide planning and suicide attempts among middle school students during the last 12 months were 12.93%,4.54% and 5.06%,respectively. The results of multivariate logistic regression analysis indicated that females(OR:1.397-1.575,95%CI:1.178-1.927),students of grade 7 to 9(OR:1.625-1.824,95%CI:1.323-2.082),poor health condition(OR:1.160-2.131,95%CI:1.005-2.985),loneliness(OR:1.574-4.423,95%CI:1.221-5.254 ),desperation(OR:2.796-3.232,95%CI:2.400-3.990),anxiety(OR:1.890-2.117,95%CI:1.503-2.496),less than 8 hours a day of sleep(OR:1.152-1.263,95%CI:1.030-1.594),smoking(OR:1.476-2.074,95%CI:1.055-3.072),drinking(OR:1.479-1.863,95%CI:1.271-2.296),fighting(OR:1.716-1.941,95%CI:1.330-2.422)and school bullying(OR:2.254-3.292,95%CI:1.342-5.277)were common risk factors for suicide ideation,suicide planning and suicide attempts;physical activity(OR:0.597-0.720,95%CI:0.474-0.923)was a common protective factor for suicide ideation,suicide planning and suicide attempts.Conclusion Females,lower grade,poor health condition,loneliness,desperation,anxiety,lack of sleep,smoking,drinking,fighting,school bullying and physical activity were influencing factors for suicidal behaviors.
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