Interventions to enhance testing and linkage to treatment for hepatitis C infection for people who inject drugs: A systematic review and meta-analysis

•People with ongoing injecting drug use experience many unique barriers to HCV care.•Interventions which address these barriers are needed for people who inject drugs to increase engagement with testing and treatment.•Patient education, provider care coordination, and dried blood-spot testing improved HCV antibody testing.•Integrated care, patient navigation, and point-of-care antibody testing improved linkage to HCV care.•Integrated care was effective at improving HCV treatment initiation.