population——1:Kidney dialysis population 2:drug addicts 3:blood donors sex——1:male 2:female age—— 0:age1≤50 1:age1>50 alt——0:alt1<40 1:alt1≥40 ast——0:ast1<40 1:ast1≥40 groups——0:spontaneous clearance subjects 1:persistent infection patients HBsAg——0:HBsAg positive 1:HBsAg negative 9:NA antiHCV——1:antiHCV positive RNA——0:HCV virus negative 1:HCV virus positive Genetype2——1:Genetype for 1b 2:Genetype is mixed 3:Genetype for others rs4158——0:AA 1:AG 2:GG rs0046——0:TT 1:TC 2:CC rs4160——0:GG 1:GA 2:AA