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Author Spotlight: Advancements and Challenges in Hepatitis B Virus Detection
Published on: December 15, 2023
[Analysis on duplicate reporting of hepatitis B in national notifiable communicable disease report system in China,
H Zheng1, F Z Wang1, G M Zhang1
12nd Epidemiology Division, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Insights
Duplicate reporting of hepatitis B in China
Area of Science:
- Epidemiology
- Public Health Surveillance
Background:
- The national notifiable communicable disease report system (NNDRS) is crucial for monitoring infectious diseases in China.
- Accurate surveillance data is essential for effective public health interventions and resource allocation.
Purpose of the Study:
- To quantify the extent of duplicated reporting for hepatitis B within China's NNDRS between 2011 and 2013.
- To identify patterns and characteristics of these duplicate reports.
- To assess the impact of duplicate reporting on hepatitis B incidence data.
Main Methods:
- Utilized SAS 9.1.3 software to analyze hepatitis B case data from NNDRS (2011-2013).
- Employed multiple protocols based on case ID, name, gender, birth date, and address code to identify duplicates.
- Calculated duplicated reporting rates and analyzed the timing of duplicate entries.
Main Results:
- A total of 3,389,374 hepatitis B cases were reported, with a duplicated reporting rate of 7.35% (249,047 cases).
- Duplicate reports occurred both within the same year (33.04%) and across different years (66.96%).
- Excluding duplicates could significantly reduce the reported hepatitis B incidence in provinces like Xinjiang and Qinghai.
Conclusions:
- The study confirms a substantial duplicated reporting rate of 7.36% for hepatitis B in the NNDRS during 2011-2013.
- Duplicate reporting, particularly across different years, significantly distorts hepatitis B surveillance data accuracy in certain regions.
- Addressing data duplication is critical for reliable public health surveillance and accurate disease burden estimation in China.
Abstract:
Objective: To analyze the duplicated reporting of hepatitis B in the national notifiable communicable disease report system (NNDRS) in China during 2011-2013. Methods: The data of hepatitis B reported from January 1, 2011 to December 31, 2013 were collected from NNDRS, the duplicated reporting were searched with software SAS 9.1.3 according to the cases'ID number, name, gender, birth data and current address code. Results: During 2011-2013, a total of 3 389 374 hepatitis B cases were reported through NNDRS, but the duplicated reporting rate was 7.35% (249 047). According to 6 protocols, the duplicated reporting rate ranged from 0.88% to 6.38%. If using the data in 2011 as the baseline, the duplicated reporting rate in the three years was 2.91%, 8.11% and 11.72%, respectively. In the duplicated repeating, 33.04% (71 709) occurred in the same year, and 66.96% (145 329) occurred in other year. Without the duplicated repeating, the hepatitis B incidence in Xinjiang and Qinghai provinces in 2013 could decreased by 30.80/100 000 and 26.26/100 000, respectively. Conclusions: The analysis indicated that the duplicated repeating rate of hepatitis B was 7.36% in NNDRS during 2011-2013, and the duplicated reporting mainly occurred in other years. The duplicated reporting of hepatitis B in NNDRS had greatly affected the accuracy of surveillance data in some provinces, such as Xinjiang and Qinghai.
