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目的:探讨宁波市丙型病毒性肝炎发病趋势和流行病学特征,为制定防控策略提供科学依据。方法:采用描述性流行病学方法对宁波市1998~2008年丙型病毒性肝炎监测资料进行分析。结果:1998~2008年丙肝发病率波动在0.09/10万~1.21/10万之间,年均发病率为0.56/10万,2001年最低,以后呈逐年上升趋势;宁波市所辖11县市区均有病例报告,个别县区发病率较高,但县区间差别无统计学意义(2χ=0.402,P>0.05);丙肝发病以20~39岁青壮年为主,占总病例的50.74%;男性与女性发病率没有统计学差别(2χ=3.10,P>0.05);病例构成以农民和工人为主,占总病例的45.54%。结论:宁波市丙肝发病率总体较低,但呈明显上升趋势,需加强控制工作,建立以切断传播途径为主的综合防控措施。
Objective: To explore the epidemic trend and epidemiological characteristics of hepatitis C virus in Ningbo and to provide a scientific basis for making prevention and control strategies. Methods: Descriptive epidemiological methods were used to analyze the surveillance data of hepatitis C in Ningbo from 1998 to 2008. Results: The incidence of hepatitis C from 1998 to 2008 fluctuated between 0.09 / 100,000 and 1.21 / 100,000, with an average annual incidence rate of 0.56 / 100000, the lowest in 2001 and then rising year by year. 11 counties and cities under the jurisdiction of Ningbo There were case reports in each district, with a higher incidence in individual counties but no significant difference between counties (2χ = 0.402, P> 0.05). The incidence of hepatitis C in young adults aged 20-39 was 50.74% There was no significant difference between male and female (2χ = 3.10, P> 0.05). The majority of cases were peasants and workers, accounting for 45.54% of the total cases. Conclusion: The incidence of hepatitis C in Ningbo is generally low, but it shows a clear upward trend. It is necessary to strengthen the control work and establish a comprehensive prevention and control measures that mainly cut off the route of transmission.