ObjectiveTo analyze the epidemiological characteristics of hepatitis B in Henan province, and provide evidence for the hepatitis B prevention and control and the evaluation of immunization effects.
MethodsThe incidence data of hepatitis B in Henan from 2004 to 2019 were obtained from National Diseases Reporting Information System for a descriptive epidemiological analysis.
ResultsA total of 1 735 131 cases of hepatitis B were reported in Henan from 2004 to 2019, with an annual average incidence of 105.37 per 100 000. The overall reported incidence of hepatitis B showed an upward trend from 2004 to 2007, but showed a downward trend from 2008 to 2012 and showed a significant decline in 2013. The proportion of unclassified hepatitis B cases gradually decreased. The cases reported after 2013 were mainly chronic hepatitis B. The top three areas reporting high hepatitis B case numbers were Zhengzhou, Nanyang, and Xinyang, where the reported cases accounted for 11.30%, 10.26% and 7.55% of the total, respectively. There was no obvious seasonality in the reported incidence of hepatitis B. More cases were reported in men than in women with a gender ratio of the cases was 1.47∶1. The majority of the reported cases were farmers (63.41%). A total of 2 026 cases were reported in 0-year-old group with an average reported incidence rate of 9.88/100 000. The annual average reported incidence rate in 25–30-year-old group was highest (206.73/100 000).
ConclusionThe quality of hepatitis B reported in Henan had been further improved since 2013. The reported incidence of hepatitis B was in decline, but the number of reported cases was still high. It is suggested to conduct special analysis and research on the quality of hepatitis B reporting to improve the reporting quality and understand the actual incidence level of hepatitis B while carrying out hepatitis B vaccination and hepatitis B maternal-neonatal transmission blocking projects.
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