溧阳市1999～2005年乙型病毒性肝炎流行病学分析

Epidemiological Analysis of Virus Hepatitis B from 1999 to 2005 in Liyang County

[目的]了解溧阳市乙型肝炎的流行病学特征。[方法]采用χ2的统计学方法对溧阳市1999～2005年乙型肝炎疫情资料的分布特征进行描述。[结果]1999～2005年溧阳市报告乙型肝炎病例1335例,年平均发病率为24.38/10万。不同年份发病率的差异有统计学意义(P<0.05)。男女发病率之比为3.73∶1,30～39岁年龄组发病率最高(43.46/10万),其次为40～49岁年龄组,1～9岁年龄组发病率最低(1.82/10万)。不同年龄组及性别间发病率的差异均有统计学意义(P<0.01)。职业构成中以农民为主,占58.95%,工人次之。[结论]乙型肝炎的发病呈下降趋势,要加强乙肝疫苗的预防接种,提高人群免疫力,降低乙肝的发病率。

[Objective]To understand the epidemic characteristics of viral hepatitis B in Liyang county.[Methods]Statistical χ～2 test was applied to analyze the epidemic data of viral hepatitis B in Liyang county from 1999 to 2005.The epidemiological distribution characteristic of viral hepatitis B was described.[Results]1 335 HB cases were reported,the mean incidence of hepatitis B was 24.38/lakh from 1999 to 2005 in Liyang.There was significant difference between different year's incidence(P<0.05).The ratio between males and females was 3.73:1.The morbidity of group aged from 30 to 39 was the highest(43.46/lakh),the next group was aged 40-49 years old,and 1-9 years old was the lowest(1.82/lakh).There were significant differences between different age and sex.As for occupations,farmers were easiest being infected(58.95%),and the next were workers.[Conclusion]The epidemic situation of HB showed decrease trend from 1999 to 2005 in Liyang County.The inoculation of hepatitis B vaccine should be strengthened in order to improve people's immunity,and decrease the incidence of hepatitis B.