Cardiac Autonomic Function Correlates with Arterial Stiffness in the Early Stage of Type 1 Diabetes

Table 2

Pulse wave velocity and indices of autonomic function in the study population.

	N (%)/mean (SD)
Pulse wave velocity (m/s)	5.6 (0.9)
𝐸/𝐼 index	1.33 (0.16)
𝐸/𝐼 index (normal/borderline/low)	39/10/17 (59.1/15.2/25.7)
30 : 15 index	1.33 (0.18)
30 : 15 index (normal/borderline/low)	51/5/10 (77.3/7.6/15.1)
Valsalva index	1.94 (0.40)
Valsalva index* (normal/borderline/low)	50/7/4 (75.8/10.6/6.1)
Change in SBP (mmhg)	−0.36 (9.84)
Change in SBP (normal/borderline/low)	58/5/3 (87.8/7.6/4.6)
Total score (median)	1.0 (0.0–7.0)
Presence of CAN (yes/no)	7/59 (10.6/89.4)

* Not available in 5 patients due to poor compliance in performing the test.