Fig. 2From: Seroprevalence of hepatitis C virus in Jinan, China, 2008–2020HCV seroprevalence in different age groups in 2008–2020. Data were categorized into age groups using 10-year intervals, except for those individuals aged 18–30 years, for which a 12-year interval was used. The bar graphs show the ration of HCV seropositivity. Null: patients did not provide individual ageBack to article page