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目的研究乙肝发病特点,掌握其发病规律,为制定防治对策提供科学依据。方法统计分析长沙市1991年到2007年乙肝发病的时间、空间、人群分布特征。结果长沙市17年间共发病25608例,男性多于女性,农村发病率高于城市,发病年龄主要集中在15-55岁,从1991年至2007年20岁以上年龄组乙肝发病率明显上升,而14岁以下年龄组却呈迂回下降态势。乙肝发病者中农民、学生所占比例较大,乙肝发病情况与接种乙肝疫苗之间,有着非常密切的关系。结论针对乙肝发病集中在15-55岁组的青壮年,且农民发病率高,在人口密集地区及高危人群中积极宣传,采取以切断传播途径、乙肝疫苗免疫预防为重点的综合性措施,是今后乙肝防治工作的重点。
Objective To study the characteristics of hepatitis B pathogenesis, master the pathogenesis of hepatitis B and provide a scientific basis for formulating prevention and control measures. Methods Statistical analysis of Changsha from 1991 to 2007 the incidence of hepatitis B, space, population distribution characteristics. Results The incidence of hepatitis B in Changsha was 25,608 cases over 17 years, with more males than females. The prevalence rate in rural areas was higher than that in urban areas. The age of onset mainly concentrated in 15-55 years old. From 1991 to 2007, the incidence of hepatitis B in patients over 20 years old increased obviously, The age group of 14 years old has a roundabout downward trend. Hepatitis B incidence among peasants, a larger proportion of students, hepatitis B incidence and hepatitis B vaccination, has a very close relationship. Conclusion The incidence of hepatitis B is mainly concentrated in young adults aged 15-55 years, and the incidence of peasants is high. In the densely populated areas and high-risk groups, they are actively advocated and taken to cut off the route of transmission, hepatitis B vaccine immunoprophylaxis focused comprehensive measures The focus of prevention and treatment of hepatitis B in the future.