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| Epidemic trend of viral hepatitis B in Shaoxing from 2008 to 2018 |
| MA Yan, FANG Yirong, WANG Jiling, ZHAO Qifeng, FU Lijun
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| Shaoxing Center for Disease Control and Prevention,Shaoxing,Zhejiang 312071,China |
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Abstract Objective To understand the epidemiological characteristics of viral hepatitis B in Shaoxing from 2008 to 2018,so as to provide basis for formulating the viral hepatitis B prevention and control strategy. Methods The data of viral hepatitis B cases in Shaoxing from 2008 to 2018 were collected from infectious diseases reporting and management system. Descriptive epidemiological method was employed to analyze the time,place and population characteristics of viral hepatitis B cases in Shaoxing. Annual percentage change（APC）was calculated to analyze the development trend of viral hepatitis B. Results From 2008 to 2018,a total of 22 764 cases of viral hepatitis B were reported in Shaoxing,with an average annual incidence rate of 42.24/100 000 and a standardized incidence rate of 39.19/100 000. The incidence rate of viral hepatitis B decreased from 2008 to 2018,among which the APC from 2012 to 2018 was -18.00% with a significantly downward trend（P<0.05）. Six counties,cities or districts in Shaoxing reported cases of viral hepatitis B,of which Zhuji（49.40/100 000）,Yuecheng（44.17/100 000）and Xinchang（43.28/100 000）ranked top three in average annual incidence rate. The incidence rate of viral hepatitis B in men was 57.07/100 000,which was higher than 27.33/100 000 in women（P<0.05）.The age of onset was mainly 25-59 years old,with 16 941 cases（74.42%）reported. The top three occupations were farmers,workers and migrant workers,with 15 013（65.95%）,2 730（11.99%）and 1 121（4.92%）cases reported,respectively. Conclusions The incidence of viral hepatitis B in Shaoxing from 2008 to 2018 showed a downward trend. Farmers,workers and migrant workers aged 25-59 years were at high risk of hepatitis B infection.
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Received: 23 September 2019
Revised: 03 November 2019
Published: 10 January 2020
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