“…64 However, in the surgical ICU trial, there was no threshold below which there was no further reduction in risk; patients whose mean blood glucose was below 110 mg/dL had lower mortality than those whose levels were between 110 and 150 mg/dL (P ϭ .026). 65 Finally, the effects of hyperglycemia and intensive insulin may vary by population: retrospective studies found that ICU hyperglycemia was more strongly associated with mortality among nondiabetics, 64,66 and van den Berghe et al noted no benefit from intensive insulin in a small subgroup of diabetics. 59 In summary, large, well-designed trials have demonstrated that intensive insulin reduced mortality in critically ill patients after a delay of 3-5 days, but this benefit did not extend to all patients in the medical ICU.…”