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近年国内外有关全死因调查资料表明，人群死亡率逐年下降，但外伤、自杀、他杀、车祸等意外死亡率有逐年升高趋势。美国人群自杀在全部死亡原因中居第9位，1980年的自杀死亡率为15.6/10万。日本1984年自杀死亡25202人，自杀率为21.1/10万，是日本自杀率最高的一年。在大多数欧洲国家自杀也是10种最常见致死原因之一。因此，自杀不仅是法医学、社会医学研究的课题，也是预防医学研究的课题。目前，我国有关自杀因素分析的专题研究甚少。为了了解我市自杀行为的发生及分布情况，我们对巴县118万人口、1981～1985年期间所发生的全部自杀死亡案例进行了分析。
In recent years, the data on all-cause investigation at home and abroad show that the death rate of the population has been declining year by year, but the accidental death rates such as trauma, suicide, assassination and car accidents have been increasing year by year. The United States suicide ranked 9th among all the causes of death, with a suicide rate of 15.6 / 100,000 in 1980. Japan committed 25,202 suicides in 1984 with a suicide rate of 21.1 / 100,000, the highest year of suicide in Japan. Suicide is also one of the 10 most common causes of death in most European countries. Therefore, suicide is not only a topic of forensic science and social medicine research, but also a topic of preventive medicine research. At present, there are few studies on the topic of suicide in our country. In order to understand the occurrence and distribution of suicides in our city, we analyzed all cases of suicide occurred in Baxian during the period 1981-1985 with a population of 1.18 million.