中山市流动人口与户籍人口自杀率和自杀方式特征分析

目的分析2015年-2017年中山市流动人口和户籍人口自杀率变化趋势和自杀案例特征,为中山市制定自杀干预策略提供参考。方法抽取中山市死因登记报告信息系统中死亡时间为2015年1月1日-2017年12月31日的死亡案例,按照是否具有中山市户籍分为户籍组和流动组,计算并比较两组自杀率和自杀方式的差异。结果中山市2015年-2017年自杀率为4. 03/10万。户籍组和流动组年自杀率分别为3. 61/10万、4. 46/10万。两组自杀率均随年龄增长呈上升趋势,流动组60岁以上人群自杀率高于户籍组(34. 94/10万vs. 6. 83/10万)。前三位的自杀方式,户籍组分别为自缢95例(53. 67%)]、服用农药27例(15. 25%)]和高坠22例(12. 43%)];流动组分别为自缢65例(30. 37%)]、高坠48例(22. 43%)]和服用农药30例(14. 02%)],两组自杀方式分布的差异有统计学意义(χ~2=32. 99,P<0. 01)。结论中山市流动人口与户籍人口自杀死亡的案例均以自缢、服用农药和高坠为主。流动人口自杀率略高于户籍人口,老年流动人口可能是高自杀风险人群。

Analysis of incidence rate and ways of suicide among floating populationand registered population in Zhongshan

Objective To analyze the suicide case characteristics and the trends in suicide rates between the floating and registered population in Zhongshan city,so as to provide reference for the formulation of related intervention strategies.Methods The data of all death cases reported in Zhongshan from January 1,2015 to December 31 2017 were collected from Death Cause Register Reporting System,and the selected cases were divided into the registered population group and floating population group.Then the suicide rate and suicide methods were compared between the two groups.Results The suicide rate in Zhongshan from 2015 to 2017 was 4.03/100 000.The annual suicide rate was 3.61/100 000 in registered population group and 4.46/100 000 in floating population group.The suicide rate in both groups increased with age;the suicide rate among cases over 60 years old was higher in floating population group than in registered population group(34.94/100 000 vs.6.83/100 000).The top three suicide methods were hanging 95 cases(53.67%)],taking pesticides 27 cases(15.25%)] and jumping from height 22 cases(12.43%)] in the registered group,meanwhile,the top three suicide ways in floating group were hanging 65 cases(30.37%)],jumping from height48 cases(22.43%)] and taking pesticides 30 cases(14.02%)].Analysis of suicide methods showed significant difference between the two groups(χ~2=32.99,P<0.01).Conclusion The main suicide ways of floating population and registered population in Zhongshan are hanging,taking pesticide and jumping from height,and the floating population suffers a slightly higher suicide rate than registered population,among which,elderly floating population is at high risk of suicide.