Table 3

Regression analyses of autonomic neuropathy variables with PORH

	R² change	β	p Value
TtP
Step 1*	0.18		<0.01
Step 2	0.02		0.15
Duration		−0.05	0.60
Age*		−0.41	<0.01
Gender		0.002	0.98
RMS-SD		−0.14	0.15
P%BL
Step 1	0.06		0.12
Step 2	0.006		0.45
Duration		−0.16	0.14
Age*		0.22	0.04
Gender		−0.03	0.75
RMS-SD		0.08	0.45
TtP
Step 1*	0.18		<0.01
Step 2	0.02		0.13
Duration		−0.06	0.56
Age*		−0.41	<0.01
Gender		0.01	0.90
SDNN		−0.15	0.13
P%BL
Step 1	0.06		0.12
Step 2	0.005		0.48
Duration		−0.15	0.15
Age*		0.22	0.04
Gender		−0.04	0.70
SDNN		0.07	0.48
TtP
Step 1*	0.18		<0.01
Step 2	0.001		0.76
Duration		−0.04	0.67
Age*		−0.41	<0.01
Gender		0.01	0.89
Total power		−0.03	0.76
P%BL
Step 1	0.06		0.12
Step 2	0.001		0.83
Duration		−0.16	0.13
Age*		0.22	0.04
Gender		−0.04	0.70
Total power		0.02	0.83

*Significant at p<0.05.
P%BL, peak as a percentage of baseline; PORH, postocclusive reactive hyperemia; RMS-SD, root mean square of the R–R interval; SDNN, SD of the N–N interval; TtP, time to peak.