Supplementary Material for: Provider Attitudes toward the Use of Hepatitis C Virus-Positive Organs in Kidney Transplantation T.Couri J.Katz K.Stoeckle A.Nugooru H.Yeh R.Chung S.Paul 2019 <b><i>Background:</i></b> Direct-acting antivirals have changed the landscape of hepatitis C virus (HCV) care. While transplantation with HCV-positive donor organs is increasing, little is known about providers’ attitudes toward this topic. The aim of this study is to determine providers’ attitudes toward HCV-positive kidney transplantation. <b><i>Methods:</i></b> Willing transplant and nontransplant nephrologists, transplant surgeons, and mid-level providers completed an online survey from April through May 2018. The survey asked about HCV knowledge and willingness to transplant HCV-positive antibody, nucleic acid testing-positive kidneys into HCV-negative recipients. Descriptive analyses including mean and median for continuous variables and frequencies for categorical variables were calculated. <b><i>Results:</i></b> Seven-hundred surveys were emailed and 99 providers (62 transplant nephrologists, 28 nontransplant nephrologists, 7 transplant surgeons, and 2 advanced practice providers) completed the survey (participation rate 14.1%). All providers knew that HCV was curable, with 60% believing that it had no effect on transplant success and 32% thinking it reduced transplant success. Providers were significantly more likely to offer a HCV-positive organ to HCV-positive recipients compared to HCV-negative recipients in all queried circumstances (<i>p</i> < 0.005 in all cases), especially with increasing impact on patient’s quality of life. While only 39% of providers would offer a HCV-positive organ for transplant to a patient without HCV if it reduced the waitlist time by 1 year, 92% would offer a HCV-positive organ if it reduced the waitlist time by 4 years. However, only 47% thought that the use of HCV-positive kidneys should be for routine care, while 38% believed it should be reserved for research purposes only. There were no significant differences between transplant and nontransplant nephrologists in attitudes toward HCV-positive kidney transplantation. Providers believed that donor organs from those who were obese, >50 years old, or had died from a cardiac arrest were significantly more likely to reduce the likelihood of a successful transplant 1-year posttransplant when compared with a HCV-positive organ (<i>p</i> < 0.005 in all cases). Eighty-six percent of providers had concerns about HCV curability posttransplant. <b><i>Conclusion:</i></b> Although 92% of providers were willing to offer a HCV-positive kidney for transplant as patient waitlist time increases, less than half supported offering HCV-positive transplantation for routine care rather than for research. The results underscore the need for further education and data about the efficacy and safety of HCV-positive kidney transplantation.