Journal of Tropical Diseases and Parasitology ›› 2025, Vol. 23 ›› Issue (1): 34-39.doi: 10.20199/j.issn.1672-2302.2025.01.007

• CONTROL STUDY • Previous Articles     Next Articles

Analysis of the epidemiological characteristics of viral hepatitis C in Anhui Province from 2012 to 2023

ZHANG Jin(), LOU Qiuyue, DAI Seying, WU Jianjun   

  1. Anhui Provincial Center for Disease Control and Prevention, Hefei 230601, Anhui Province, China
  • Received:2024-06-07 Online:2025-02-20 Published:2025-04-03

Abstract:

Objective To analyze the epidemiological characteristics of viral hepatitis C (Hepatitis C) in Anhui Province for evidences to scientifically prevent and control this contagious entity. Methods Data on hepatitis C registered in Anhui Province from 2012 to 2023 were retrieved through the China Information System for Disease Control and Prevention. Descriptive epidemiologic method was used to analyze the characteristics of reported cases in terms of temporal, regional and population distribution. Joinpoint regression model was used to analyze change trends in hepatitis C. A time series model was developed using SPSS software. The Expert Modeler was used to automatically select the optimal model to predict the incidence of hepatitis C in Anhui Province in 2024. Results A total of 89 722 cases of hepatitis C were reported in Anhui Province from 2012 to 2023, with an average annual prevalence of 12.34/100 000. The results of Joinpoint regression analysis showed an increasing trend in the incidence of hepatitis C from 2012 to 2019 (APC=12.91%, t=13.58, P<0.01) and a decreasing trend from 2019 to 2023 (APC=-5.14%, t=-3.02, P<0.05). The highest number of cases was reported in March, accounting for 9.54% (8 561 cases). The top three reported cases were Fuyang City (14 384 cases, 16.03%), Wuhu City (9 020 cases, 10.05%) and Suzhou City (8 841 cases, 9.85%). There were 45 219 male cases and 44 503 female cases, with a male-to-female ratio of 1.02∶1. The victims were in population aged 40 years and above (77 076 cases, 85.91%). Occupation was dominated by farmers (54 970 cases, 61.27%). The modeling results of the time series analysis were the autoregressive integrated moving average (ARIMA)(1,1,0) (0,1,1) model automatically selected by the system. The prediction results showed that the potential number (95%CI) of hepatitis C cases in Anhui Province in 2024 was 7 634 (5 174, 10 092). Conclusion The incidence rate of hepatitis C reported in Anhui Province from 2012 to 2023 shows a trend of first rising and then falling. Higher incidence was seen in Fuyang City and other areas. Men, famers, middle-aged and elderly people are the high-risk group. The findings suggest that disease surveillance, publicity and education should be strengthened in key areas and populations in light of the epidemiological characteristics of hepatitis.

Key words: Viral hepatitis C, Epidemiological characteristics, ARIMA model, Joinpoint regression model, Anhui Province

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