Symptom scores of islet transplant recipients (□), type 1 diabetic subjects ([cjs2113]), and nondiabetic control subjects
([cjs2110]) at basal and 45-min plasma glucose levels during the hypoglycemic clamp. The scores of the islet transplant recipients
did not differ significantly from those of the type 1 diabetic subjects at all glycemic levels. At 40 mg/dl (2.2 mmol/l),
symptom recognition in both groups was significantly less than that observed in the nondiabetic control subjects. *P < 0.05 vs. control, ANOVA.