SERPINA1 and hepatitis C virus infection: The interaction between non-reference SERPINA1 genotypes and hepatitis C for the outcome of liver transplantation was significant for all groups (MS: OR = 1.03, p = 0.018, MZ: OR = 1.11, p = 6.92e-13, SS: OR = 2.21, p = 6.05e10-15, SZ: OR = 1.31, p = 1.69e10-4, and ZZ: OR = 1.23, p = 4.70e10-4; Fig 1B, Tables 2 and 3).