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Analysis on the proportion of reported hepatitis B cases through pilot surveillance in China during 2006 / 中华流行病学杂志
Chinese Journal of Epidemiology ; (12): 872-874, 2007.
Article in Zh | WPRIM | ID: wpr-322906
Responsible library: WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To better understand the proportions of reported hepatitis B cases in pilot surveillance cites through investigation and laboratory testing.</p><p><b>METHODS</b>To confirm the reported cases of hepatitis B by collecting blood specimen and laboratory testing on HBsAg, IgM of Anti-HBc, Anti-HAV in 18 pilot surveillance counties.</p><p><b>RESULTS</b>Among 2858 cases of hepatitis B reported in 2006, 23.97% of them were reported as suspected acute cases, 14.87% as acute cases, 20.33% as suspected chronic cases, 34.67% as chronic cases, 4.09% as cirrhosis and 2.06% as HCC. Among 1681 reported hepatitis B cases confirmed by laboratory testing, results showed that 24.16% of them were diagnosed as acute hepatitis B, but only 15.37% were confirmed as acute hepatitis B. Although the proportion confirmed as hepatitis B kept consistent as before, misclassification was found.</p><p><b>CONCLUSION</b>In current surveillance system, reported hepatitis B cases were mainly chronic, only up to one third belonged to acute hepatitis B. The reported incidence of hepatitis B did not reflect the real incidence due to misclassification. To better define the burden on hepatitis B disease, it was necessary and urgent to revise the diagnostic criteria and to conduct surveillance on hepatitis B, under separate reporting categories which including acute and chronic cases of the disease.</p>
Subject(s)
Full text: 1 Index: WPRIM Main subject: Blood / China / Pilot Projects / Population Surveillance / Epidemiology / Incidence / Diagnosis / Hepatitis B / Hepatitis B Antibodies Type of study: Diagnostic_studies / Incidence_studies / Prognostic_studies / Screening_studies Limits: Humans Country/Region as subject: Asia Language: Zh Journal: Chinese Journal of Epidemiology Year: 2007 Type: Article
Full text: 1 Index: WPRIM Main subject: Blood / China / Pilot Projects / Population Surveillance / Epidemiology / Incidence / Diagnosis / Hepatitis B / Hepatitis B Antibodies Type of study: Diagnostic_studies / Incidence_studies / Prognostic_studies / Screening_studies Limits: Humans Country/Region as subject: Asia Language: Zh Journal: Chinese Journal of Epidemiology Year: 2007 Type: Article