TABLE 2.

Correlation of dorsal root ganglia volume and normalized signal intensity with clinical parameters.

	L5 dorsal root ganglia volume in mm3 (n = 55)			L5 dorsal root ganglia normalized signal intensity (n = 55)
	r	95%CI	p	R	95%CI	p
L5 dorsal root ganglia volume (mm3)	n.a.	n.a.	n.a.	0.12	−0.16 to 0.38	0.39
L5 dorsal root ganglia normalized signal intensity	0.12	−0.16 to 0.38	0.39	n.a.	n.a.	n.a.
NDS (n = 55)	<0.01	−0.22 to 0.22	0.99	0.13	−0.10 to 0.34	0.36
NDS DPN (n = 30)	–0.43	−0.66 to −0.14	0.02	0.03	−0.28 to 0.34	0.88
NSS (n = 55)	0.02	−0.20 to 0.25	0.87	0.10	−0.12 to 0.32	0.46
NSS DPN (n = 30)	–0.06	−0.37 to 0.25	0.74	0.22	−0.10 to 0.49	0.28
NSS painful DPN (n = 11)	0.33	−0.24 to 0.72	0.36	0.80	0.46 to 0.93	0.005
NSS painless DPN (n = 19)	–0.11	−0.49 to 0.28	0.65	–0.09	−0.47 to 0.30	0.71
NDS painful DPN (n = 11)	–0.05	−0.56 to 0.49	0.90	0.66	0.21 to 0.88	0.04
NDS painless DPN (n = 19)	–0.41	−0.69 to −0.01	0.11	–0.11	−0.49 to 0.28	0.64

All correlation coefficients are calculated as Spearman coefficients, corrected for age. 95%CI = 95% confidence interval; n.a. = not applicable. NSS = neuropathy symptom score; NDS = neuropathy disability score.