Journal of Tropical Diseases and Parasitology ›› 2025, Vol. 23 ›› Issue (1): 24-29.doi: 10.20199/j.issn.1672-2302.2025.01.005

• TOPICS ON OTHER INFECTIOUS DIARRHEA PREVENTION AND CONTROL • Previous Articles     Next Articles

Epidemiological characteristics and trends of other infectious diarrhea in Chuzhou City from 2012 to 2022

CHENG Donglin1(), GUO Qian2(), GUO Qisheng2, TANG Gan2, WANG Ziwei2, FAN Yinguang2()   

  1. 1. Chuzhou City Center for Disease Control and Prevention, Chuzhou 239000, Anhui Province, China
    2. School of Public Health, Anhui Medical University
  • Received:2024-06-12 Online:2025-02-20 Published:2025-04-03
  • Contact: FAN Yinguang E-mail:1661729832@qq.com;3196942501@qq.com;fanyinguang@163.com

Abstract:

Objective To understand the epidemiological characteristics and change trends of other infectious diarrhea in Chuzhou area for scientific evidence in formulation of prevention and control strategies for this infection. Methods The data on the cases of other infectious diarrhea reported in Chuzhou area from 2012 to 2022 were collected through the Chinese Disease Prevention and Control Information System. Descriptive epidemiological methods were used to analyze the spatial, temporal, and population distribution characteristics. Joinpoint regression model was used to analyze the trend of incidence. Results In total, 26 742 cases of other infectious diarrhea were reported in Chuzhou City from 2012 to 2022. No death occurred. The average annual reported incidence rate was 53.64 per 100 000 population. The disease showed seasonal patterns, with the main peak occurring from May to August (11 914 cases, 44.55%) and a secondary peak from October to January of the following year (7 638 cases, 28.56%). Among the cases, 14 617 were males and 12 125 were females, with a male-to-female ratio of 1.21∶1. The average annual reported incidence rate was higher in males (56.49 per 100 000 population) than in females (50.56 per 100 000 population). The highest proportion of cases was observed in the 0-4 age group (7 991 cases, 29.88%). Among different occupations, the highest proportion was seen in farmers (13 503 cases, 50.49%), followed by children living at home (8 313 cases, 31.09%). The top three regions with the highest average annual reported incidence rates were Dingyuan County (110.27 per 100 000 population), Mingguang City (88.58 per 100 000 population), and Nanqiao District (52.57 per 100 000 population). Joinpoint regression analysis revealed an overall increasing trend in the reported incidence rate from 2012 to 2022 (AAPC=7.36%, t=2.058, P<0.05), and the increase appeared faster from 2012 to 2019 (APC=11.50%, t=3.693, P<0.05). There was no significance in the incidence trend from 2019 to 2022 (APC=-1.733%, t=-0.190, P>0.05). Etiological results were reported for 1 142 cases, of which 1 087 (95.18%) were viral infections and 55 (4.82%) were bacterial infections. Six clustered outbreaks were reported, all occurring in schools and caused by norovirus. Conclusion The incidence of other infectious diarrhea in Chuzhou City primarily peak in summer, with most cases reported among farmers and children under 5 years old. Our findings suggest that it is essential to strengthen health education for the key populations and implement targeted prevention and control measures before the high-incidence seasons to reduce the risks of infection.

Key words: Other infectious diarrhea, Epidemiological characteristic, Trends, Joinpoint regression model, Chuzhou City

CLC Number: