About the Authors

Lars T. Fadnes

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Resources, Software, Supervision, Validation, Visualization, Writing – original draft, Writing – review & editing

lars.fadnes@uib.no

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Global Public Health and Primary Care, University of Bergen, Norway

Christer Frode Aas

Roles Investigation, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Global Public Health and Primary Care, University of Bergen, Norway

Jørn Henrik Vold

Roles Formal analysis, Investigation, Validation, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Global Public Health and Primary Care, University of Bergen, Norway

Rafael Alexander Leiva

Roles Conceptualization, Investigation, Validation, Writing – review & editing

Affiliation Department of Medicine, Haukeland University Hospital, Norway

Christian Ohldieck

Roles Conceptualization, Investigation, Methodology, Project administration, Resources, Writing – review & editing

Affiliation Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway

Fatemeh Chalabianloo

Roles Investigation, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Global Public Health and Primary Care, University of Bergen, Norway

Svetlana Skurtveit

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliations Norwegian Centre for Addiction Research, University of Oslo, Norway, Department of Mental Disorders, Norwegian Institute of Public Health, Oslo, Norway

Ole Jørgen Lygren

Roles Investigation, Supervision, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, ProLAR Nett, Norway

Olav Dalgård

Roles Conceptualization, Methodology, Supervision, Writing – review & editing

Affiliations Department of Infectious Diseases, Akershus University Hospital, Lørenskog, Norway, Institute for Clinical Medicine, University of Oslo, Norway

Peter Vickerman

Roles Methodology, Supervision, Writing – review & editing

Affiliation Population Health Sciences, Bristol Medical School, University of Bristol, United Kingdom

Håvard Midgard

Roles Supervision, Writing – review & editing

Affiliations Department of Infectious Diseases, Akershus University Hospital, Lørenskog, Norway, Department of Gastroenterology, Oslo University Hospital, Norway

Else-Marie Løberg

Roles Conceptualization, Funding acquisition, Methodology, Project administration, Resources, Supervision, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Clinical Psychology, University of Bergen, Norway, Division of Psychiatry, Haukeland University Hospital, Norway

Kjell Arne Johansson

Roles Conceptualization, Funding acquisition, Investigation, Methodology, Supervision, Validation, Writing – review & editing

Affiliations Bergen Addiction Research, Department of Addiction Medicine, Haukeland University Hospital, Norway, Department of Global Public Health and Primary Care, University of Bergen, Norway

for the INTRO-HCV Study Group

Membership of INTRO-HCV Study Group is provided in the Acknowledgments.

Competing Interests

The authors LTF, CFA, JHV, SS, CO, FC, EML, KAJ, have declared that no competing interests exist. We have read the journal’s policy and these authors of this manuscript have the following competing interests: AL has received lecture and advisory fees from Gilead, GSK and MSD. OJL has received project grants from AbbVie, Gilead and MSD. OD has received research grants from and been in advisory board for MSD, Abbvie and Gilead. PV has received an unrestricted research grant off Gilead. HM has received lecture and advisory fees from Gilead, Abbvie and MSD.