Patients in CHO groups presented a lowerincidence of hospital infection (RR=0.29, 95% CI 0.09-0.94;P=0.023), needed fewer vasoactive drugs during surgeryand ICU stay (P<0.05); and had better blood glucoselevels in the first six hours of recovery (P=0.015),requiring less exogenous insulin (P=0.018). The gene discussed is INS; the disease is infection.