TABLE 2.

Correlations of the sciatic nerve’s FA with clinical, epidemiological, and serological data of diabetes patients, prediabetes patients, and controls.

	FA diabetes patients		FA prediabetes patients		FA controls
	r	p	r	p	r	p
Age (years)	–0.48	< 0.001	0.44	0.202	–0.63	0.001
Body mass index (kg/m2)	–0.18	0.140	–0.08	0.832	0.03	0.881
NDS	–0.53	< 0.001	–0.58	0.082	–0.47	0.017
NSS	–0.20	0.106	–0.57	0.107	–0.36	0.107
HbA1c (%)	0.15	0.211	–0.07	0.844	–0.42	0.039
Cystatin C (mg/l)	–0.45	< 0.001	–0.27	0.489	–0.22	0.320
Glomerular filtration rate (ml/min)	0.46	< 0.001	0.21	0.571	0.23	0.291
Triglycerides (mg/dl)	0.05	0.694	0.06	0.876	–0.04	0.867
Total serum cholesterol (mg/dl)	0.17	0.151	–0.10	0.776	–0.15	0.462
HDL cholesterol (mg/dl)	0.17	0.157	–0.11	0.762	0.07	0.728
LDL cholesterol (mg/dl)	0.10	0.414	0.05	0.770	–0.18	0.396
Sural NCV(m/s)	0.24	0.128	–0.28	0.505	–0.12	0.568
Sural SNAP (μV)	0.47	0.006	0.30	0.471	0.58	0.003
Tibial NCV (m/s)	0.47	< 0.001	0.61	0.081	0.35	0.099
Tibial CMAP (μV)	0.62	< 0.001	0.61	0.081	0.30	0.150
Peroneal NCV (m/s)	0.52	< 0.001	0.43	0.246	0.31	0.142
Peroneal CMAP (μV)	0.62	< 0.001	0.51	0.160	0.18	0.411
Total Pegboard Test score	0.52	< 0.001	0.79	0.007	0.76	< 0.001
Pegboard Test of dominant hand	0.61	< 0.001	0.65	0.044	0.64	0.001
Pegboard Test of non-dominant hand	0.43	< 0.001	0.71	0.022	0.55	0.005
Pegboard Test of both hands	0.38	0.002	0.70	0.024	0.59	0.002
Pegboard Assembly Test	0.46	< 0.001	0.71	0.022	0.61	0.001

NDS, Neuropathy Disability Score; NSS, Neuropathy Severity Score; HbA1c, glycated hemoglobin; GFR, glomerular filtration rate; HDL, high density lipoprotein; LDL, low density lipoprotein; NCV, nerve conduction velocity; m/s, meters per second; SNAP, sensory nerve action potential; CMAP, compound motor action potential; μV, microvolt.