A: Percentage of type 1 diabetic and type 2 diabetic patients with asymptomatic hypoglycemias detected by the CGMS. B: Daily distribution of asymptomatic hypoglycemias detected with the CGMS in type 1 diabetic (T1) and type 2 diabetic (T2) patients. A: Percentage of type 1 diabetic and type 2 diabetic patients with asymptomatic hypoglycemias detected by the CGMS. B: Daily distribution of asymptomatic hypoglycemias detected with the CGMS in type 1 diabetic (T1) and type 2 diabetic (T2) patients. Nocturnal asymptomatic hypoglycemic events were more frequent than diurnal ones. Type 1 diabetic subjects showed more episodes than type 2 diabetic subjects, especially at night or during both the day and night. Ana Chico et al. Dia Care 2003;26:1153-1157 ©2003 by American Diabetes Association