Patients receiving a graft procured from a donor older than 60 years ( adjusted hazard ratio ( HR ) 1.38 , 95 per cent c.i. 1.10 to 1.73 ; P = 0.006 ) , a donor with a history of diabetes ( adjusted HR 1.43 , 1.11 to 1.83 ; P = 0.006 ) and a donor with a body mass index of 35 kg/m ( 2 ) or more ( adjusted HR 1.36 , 1.04 to 1.77 ; P = 0.023 ) had an increased rate of post-transplant HCC recurrence .