Epidemiological characteristics of hepatitis C in Gansu, 2008–2017

ObjectiveTo analyzed the epidemiological characteristics of hepatitis C in Gansu province and provide scientific evidence for the improvement of prevention and control of hepatitis C.

MethodsThe incidence data of hepatitis C in Gansu from 2008 to 2017 were collected for a descriptive epidemiological analysis. The statistical analysis was done with software SPSS 20.0 and the rate comparison was through χ² test

ResultsA total of 72 899 cases of hepatitis C were reported in Gansu during this period. The incidence rate of hepatitis C showed an increase trend from 20.92/100 000 to 29.71/100 000 (χ²＝1 330.472, P＜0.01) and reached peak of 34.93/100 000 in 2012. The male to female ratios of the cases were 1.08∶ 1 and 1.83∶ 1 respectively. The cumulative case number in age group 20–49 years accounted for 42.94% of the total, showing a decrease trend. The reported incidence rate in age group ≥50 years increased year by year (χ²＝1 342.154, P＜0.05), The proportion of the cases reported in women showed an increase trend. The cases in farmers accounted for 49.27% (35 919 cases) and increased with year. Hepatitis C occurred all the year round. The incidence rates ranged from 1/100 000 to 3/100 000. The incidence rates of hepatitis C in Wuwei and Lanzhou were higher than those in other areas.

ConclusionThe overall incidence of hepatitis C in Gansu was in increase without obvious seasonality. The difference in incidences among different areas was significant, and the incidence rate increased with age. It is necessary to strengthen the surveillance for hepatitis C in key populations and areas.