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目的了解浙江省丽水市病毒性乙型肝炎(乙肝)流行特征。方法对丽水市1999-2008年报告的乙肝疫情资料,以发病率、构成比及三间分布(地区、时间、人群)情况进行统计分析。结果1999-2008年乙肝发病率均位居丽水市法定传染病首位,累积报告病例26953例,发病率在97.36/10万～131.42/10万之间,年均发病率109.78/10万,占甲、乙类传染病发病总数的33.08%;占病毒性肝炎总数的85.03%。1999-2003年乙肝发病率呈下降趋势,其后有所回升。发病无明显季节性,表现为全年散发;职业分布前3位为农民(58.48%)、工人(10.04%)、干部(7.67%);男性占73.34%,女性占26.66%,男女性别比为2.75:1;年龄分布以20～49岁组为主,占77.14%。结论乙肝是今后丽水市重点预防控制传染病之一,应采取综合性防治措施。
Objective To understand the epidemiological characteristics of viral hepatitis B (hepatitis B) in Lishui City, Zhejiang Province. Methods The data of hepatitis B outbreak reported in Lishui from 1999 to 2008 were statistically analyzed with incidence, composition ratio and three distributions (regions, time, population). Results The incidence of hepatitis B in 1999-2008 ranked the first among all the legal infectious diseases in Lishui City. The accumulated reported cases were 26 953 cases with the incidence of 97.36 / 100000 ~ 131.42 / 100000 with an average annual incidence of 109.78 / , 33.08% of the total number of B infectious diseases and 85.03% of the total number of viral hepatitis. The incidence of hepatitis B showed a decreasing trend from 1999 to 2003, and then rebounded. The incidence was not seasonal, the performance was distributed throughout the year; the top three occupations were peasants (58.48%), workers (10.04%) and cadres (7.67%); males accounted for 73.34%; females accounted for 26.66% 2.75: 1; the age distribution is mainly in the group of 20-49 years, accounting for 77.14%. Conclusion Hepatitis B is one of the key prevention and control infectious diseases in Lishui City in the future, and comprehensive prevention and treatment measures should be taken.