Trends in age-, period- and cohort-specific incidence of hepatitis C in Chifeng City from 2008 to 2022
LI Wenjun1,2, LI Hui2, YANG Jingyuan2, YANG Hong2, GAO Ya2, GAO Baicheng2, LI Yao2, ZHANG Qiyue2, QIU Yafei3
1. School of Public Health, Inner Mongolia Medical University, Hohhot, Inner Mongolia 010110, China; 2. Inner Mongolia Autonomous Region Center for Disease Control and Prevention (Inner Mongolia Academy of Preventive Medicine), Hohhot, Inner Mongolia 010080, China; 3. Chifeng Center for Disease Control and Prevention, Chifeng, Inner Mongolia 024005, China
Abstract：Objective To explore incidence trend of hepatitis C in Chifeng City, Inner Mongolia Autonomous Region from 2008 to 2022, so as to provide the basis for formulating prevention and control measures for hepatitis C. Methods Data of reported hepatitis C cases in Chifeng City from 2008 to 2022 was collected through the Infectious Disease Information Reporting Management System. Trends in incidence of hepatitis C were analyzed using annual percent change (APC) and average annual percent change (AAPC). Impact of age, period and birth cohort on the risk of developing hepatitis C were analyzed by an age-period-cohort model. Results The annual average reported incidence rate of hepatitis C in Chifeng City was 59.13/105 from 2008 to 2022. The incidence showed an upward trend from 2008 to 2018 (APC=9.405%, P<0.05) and a downward trend from 2018 to 2022 (APC=-17.475%, P<0.05), but the overall trend was not statistically significant (AAPC=0.937%, P>0.05). The age-period-cohort model analysis showed that the incidence risks of hepatitis C in the residents aged 0 to 4 years and 45 to 84 years were higher than those in the residents aged 40 to 44 years (the control group). The incidence risk of hepatitis C increased with age from 40 to 79 years. Compared with 2008-2012, the incidence risk of hepatitis C showed an increasing trend followed by a decline in 2008-2022. The incidence risk was higher in 2013-2017 and lower in 2018-2022 than in 2008-2012. The incidence risk of hepatitis C showed an increasing trend followed by a decreasing trend by using the birth cohort from 1968 to 1972 as the control. The birth cohort from 1953 to 1977 had a higher incidence risk of hepatitis C than other birth cohorts. Conclusions The overall incidence of hepatitis C in Chifeng City from 2008 to 2022 appeared a tendency towards a decline, and the incidence risk increased with age. Screening and health education for the elderly and high-risk birth cohorts should be strengthened.
李文军, 李慧, 杨景元, 杨虹, 高雅, 杲柏呈, 李瑶, 张琦玥, 邱亚飞. 2008—2022年赤峰市丙型病毒性肝炎发病的年龄、时期、队列趋势分析[J]. 预防医学, 2024, 36(6): 514-517,522.
LI Wenjun, LI Hui, YANG Jingyuan, YANG Hong, GAO Ya, GAO Baicheng, LI Yao, ZHANG Qiyue, QIU Yafei. Trends in age-, period- and cohort-specific incidence of hepatitis C in Chifeng City from 2008 to 2022. Preventive Medicine, 2024, 36(6): 514-517,522.
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