Table 2. Autonomic Function Data of the Study Patients

Values are mean ± SD.

DAN = diabetic autonomic neuropathy; E/I ratio = the ratio of the maximum RR interval during expiration to the minimum RR during inspiration; DABP = diastolic arterial blood pressure; HR = heart rate.

* Only 15 and 10 patients in older and DAN-positive groups, respectively, were able to perform these tests.

†P < 0.05, all controls versus  DAN-positive group.

‡P < 0.05, young group versus  DAN-positive group.

§P < 0.05, older group versus  DAN-positive group.

∥P < 0.05, young group versus  older group.

#P < 0.05, DAN-negative group versus  DAN-positive group.