Assessment of the duplicate notifiable reporting of hepatitis B infection in Zhejiang province,China, 2005–2015 |
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| Institution: | 1. Department of Surgery, Oncology and Gastroenterology, University of Padua, Padova, Italy;2. Department of Advanced Biomedical Sciences, Federico II University, Napoli, Italy;3. Department of Internal Medicine, University of Genoa, Genova, Italy;4. Department of Radiology, DIBIMED, University of Palermo, Palermo, Italy;5. Scuola di Specializzazione in Radiodiagnostica, University of Milano, Milano, Italy;6. Unit of Gastroenterology, IRCCS Policlinico San Donato, San Donato Milanese, Italy;7. Department of Biomedical Sciences for Health, University of Milano, Milano, Italy;8. Unit of Diagnostic and Interventional Radiology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy;1. Department of Computer Science, Johns Hopkins University, Baltimore, MD, United States;2. Department of Family Science, University of Maryland, College Park, MD, United States;3. Department of Engineering Management and Systems Engineering, The George Washington University, Washington, DC, United States;1. Regional Health Agency of Tuscany, Florence, Italy;2. University of Florence, Department of Experimental and Clinical Medicine, Florence, Italy;1. Department of Neurology and Neuroscience, Rutgers – New Jersey Medical School, 185 South Orange Avenue, MSB, H-506, Newark, NJ 07103, USA;2. Maharishi Markandeshwar University, Ambala 133207, India;1. Statens Serum Institut, 5 Artillerivej, 2300 Copenhagen S., Denmark;2. Center for Clinical and Basic Research (CCBR), Ballerup Byvej 222, 2750 Ballerup, Denmark;5. Larix A/S, Lyskær 8b, 2730 Herlev, Denmark |
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| Abstract: | BackgroundHepatitis B virus (HBV) infection control has seen improvements since the introduction of the HBV vaccination program in China. However, the reported incidence rate of HBV infection remains high owing to the large pool of individuals infected before the start of the HBV immunization program. The duplicated reporting of HBV had a remarkable effect on the overestimation of HBV disease burden, according to the Chinese National Notifiable Diseases Report System (NNDRS).MethodsWe analyzed the data of HBV in Zhejiang province, China, collected for the years 2005–2015 from the NNDRS. The duplicate reporting cases of HBV were captured according to the same identification number or the same name, sex and date of birth, or the same name, sex and resident town/street code. We assessed the magnitude of duplicated reporting of HBV and explored the possible factors contributing to duplicated reporting.ResultsThere were 20,078 redundant HBV cases reported from the NNDRS during 2005–2015, which accounted for 6.33% (19,272/305,654) of all patients owing to duplicate reporting in Zhejiang province, China. Some risk factors, including male sex, age ≥20 years, chronic cases, residence in outside counties, and farming as an occupation (odds ratio OR] = 1.06; 95% confidence interval CI]: 1.02–1.11) were positively associated with the risks on duplicate reporting.ConclusionsOur results demonstrated that the duplicated reporting of HBV infection is common in Zhejiang, China, which has contributed to a higher HBV infection prevalence than its real value. Some characteristics might affect the probability of duplicate reporting, including sex, occupation, place of residence, HBV type, and hospital type. These findings indicated the strong need to improve the data collection, deletion of duplications, and HBV classification during HBV surveillance, in order to obtain an accurate estimate of HBV disease burden in China. We also suggest establishing a specialized system to achieve high-quality HBV infection surveillance effectively and practically. |
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| Keywords: | Duplicate reporting Hepatitis B Surveillance |
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