Table 2.

Associations between sural nerve functions and clinical parameters.

	SNCV		SNAP
	β	p-Value	β	p-Value
Duration of diabetes	−0.216	<0.001	−0.19	<0.001
Brinkman index	−0.19	0.018	−0.028	0.73
Systolic blood pressure	−0.065	0.086	−0.046	0.21
Diastolic blood pressure	0.018	0.66	0.047	0.23
Plasma glucose	−0.078	0.036	−0.097	0.007
Plasma HbA1c	−0.155	<0.001	−0.148	<0.001
Serum total cholesterol	0.052	0.23	0.039	0.36
Serum triglyceride	−0.085	0.029	0.025	0.51
Serum HDL cholesterol	0.038	0.33	0.025	0.51
Serum LDL cholesterol	0.065	0.083	0.053	0.14
Serum C-peptide	0.178	0.18	0.242	0.057
Urinary albumin creatinine ratio	−0.063	0.17	−0.065	0.14
CVRR	0.336	0.016	0.159	0.25
ABI	0.191	0.001	0.147	0.007
TBI	0.104	0.071	0.061	0.27
baPWV	−0.048	0.45	0.035	0.56
⊿SNCV	−0.31	<0.001	0.079	0.3
⊿SNAP	−0.084	0.26	−0.519	<0.001

The multiple regression model was adjusted for age, sex, and body mass index (BMI). Each variable displayed in a separate row of the table was adjusted for age, sex and BMI.

SNCV, sural nerve conduction velocity; SNAP, sural nerve amplitude; HbA1c, hemoglobin A1c; HDL, high-density lipoprotein; LDL, low-density lipoprotein; CVRR, coefficient of variation of R–R intervals; ABI, ankle–brachial index; TBI, toe–brachial index; baPWV, brachial–ankle pulse wave velocity. ⊿ means annual changes in SNCV and SNAP.