Fig. 14

Trend of HCV Ab prevalence among PWID in Iran by recruitment setting. a Trend of HCV Ab prevalence among PWID in the prison setting, the Cochran–Armitage test, P value = 0.17. b Trend of HCV Ab prevalence among PWID in the hospital/healthcare center setting, the Cochran–Armitage test, P value < 0.001. c Trend of HCV Ab prevalence among PWID in the DIC setting, the Cochran–Armitage test, P value = 0.01