Journal of Tropical Diseases and Parasitology ›› 2025, Vol. 23 ›› Issue (3): 149-154.doi: 10.20199/j.issn.1672-2302.2025.03.004

• SPECIAL TOPIC ON PREVENTION AND CONTROL OF VIRAL HEPATITIS • Previous Articles     Next Articles

Trend analysis of viral hepatitis incidence in Ningxia Hui Autonomous Region from 2008 to 2024

WANG Xiuqin(), YANG Qi, WANG Xuemin, ZHANG Wenxia, MA Ying, MA Jinyu, DONG Junqiang, ZHAO Lihua()   

  1. Ningxia Center for Disease Control and Prevention, Yinchuan 750004, Ningxia Hui Autonomous Region, China
  • Received:2025-05-21 Online:2025-06-20 Published:2025-08-08
  • Contact: ZHAO Lihua, E-mail: nxcdczlh@163.com

Abstract:

Objective To analyze the epidemiological trends of viral hepatitis in Ningxia Hui Autonomous Region for evidences to optimize the prevention and control strategies. Methods The data on viral hepatitis cases reported in Ningxia area between 2008 and 2024 were retrieved from the Chinese Disease Prevention and Control Information System. Descriptive epidemiology and JoinPoint regression model were used to analyze the trend of the incidence. Results From 2008 to 2024, a total of 82 180 viral hepatitis cases were reported in Ningxia area, with an annual average incidence rate of 72.19 per 100 000 population. Hepatitis B predominated among all types of viral hepatitis (n=66 438; 80.84%), and the incidence of hepatitis A and hepatitis B showed overall declining trends (AAPC=-18.56% and -11.24%, t =-4.83 and -13.22, both P<0.05). The incidence of hepatitis C was increased from 2008 to 2011 (APC=26.24%, t=3.29, P<0.05), yet showed slower growth from 2011 to 2019 (APC=5.25%, t=3.89, P<0.05), and declined rapidly from 2019 to 2024 (APC=-23.26%, t=-9.08, P<0.05). The trend of hepatitis E incidence indicated no significant change. The cumulative reported cases were 49 779 (60.57%) in males and 32 401 (39.43%) in females, with an annual average incidence rate of 85.71 per 100 000 and 58.11 per 100 000 population, respectively. The incidence of all types of viral hepatitis was higher in males than in females, and population aged 20-49 years were most affected (n=47 607; 57.93%). The incidence was generally increased with age. By occupation distribution, farmers accounted for the majority of reported cases (n=42 821; 52.11%), representing the highest proportion in all types of viral hepatitis. By regional distribution, the reported cases were the highest in Yinchuan City (n=25 226), and the annual average incidence rate was the highest in Wuzhong City (84.62 per 100 000). Conclusion The incidence rate of viral hepatitis in Ningxia area showed an overall declining trend, with middle-aged and elderly males and farmers being the key populations. Future prevention and control efforts should focus on strengthening screening and treatment of the middle-aged and elderly rural populations to reduce disease burden and incidence rates.

Key words: Viral Hepatitis, Epidemiological characteristics, Incidence trend, Joinpoint regression, Ningxia Hui Autonomous Region

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