Analysis on epidemic trend of viral hepatitis in Haimen City from 2005-2012

[Objective]To analyze the epidemic trend of viral hepatitis in Haimen City from 2005-2012,provide the basis for making the prevention strategies and measures.[Methods]The epidemic data of viral hepatitis in Haimen City from 2005-2012 were analyzed. The annual percent changes(APC) of incidence rate of viral hepatitis were estimated by the linear regression model. [Results]During 2005-2012,the incidence rate of undifferentiated type hepatitis had decreased(P 0. 01),with APC of-21. 10%,while the incidence rate of hepatitis E had increased(P 0. 05),with APC of 23. 49%. Most of patients with viral hepatitis were people aged 35-49 years old,and the male to female ratio was 2. 54∶ 1. 73. 92% of patients with viral hepatitis were farmers and workers,and there was seasonal difference.[Conclusion]The comprehensive prevention and control measures,such as immunization,are effective methods to control the epidemic situation of viral hepatitis. Meanwhile,it is necessary to strengthen the typing report of viral hepatitis,as well as the surveillance and early warning of hepatitis E.