Table 1. Demographic and Clinical Characteristics of the Patients
Values are mean ± SD. Young group: young controls (<60 yr old), Older group: elderly controls (≥60 yr old), DAN: diabetic autonomic neuropathy; IDDM: Insulin-dependent diabetes mellitus; NIDDM: Non-insulin-dependent diabetes mellitus.
*P < 0.05 compared with young group.