TABLE 3.

Correlation between neurofilament light chain values and clinical scales in patients with Guillain–Barré syndrome, chronic inflammatory demyelinating polyneuropathy, and multifocal motor neuropathy at different time points

GBS					CIDP				MMN
CSF					CSF				CSF
Spearman’s r	GBSds 0 m	GBSds 3 m	GBSds 6 m	GBSds 12 m	Spearman’s r	INCAT 3 m	INCAT 18 m	INCAT 8–10 y	Spearman’s r	INCAT‐arm 0 m
r	0.43	0.51	0.48	0.46	r	0.48	0.69	0.7	r	0.54
p value	0.03	0.01	0.02	0.03	p value	0.04	0.001	0.01	p value	0.21
p value summary	*	*	*	*	p value summary	*	**	*	p value summary	ns
Plasma					Plasma				Plasma
Spearman’s r	GBSds 0 m	GBSds 3 m	GBSds 6 m	GBSds 12 m	Spearman’s r	INCAT 3 m	INCAT 18 m	INCAT 8–10 y	Spearman’s r	INCAT‐arm 0 m
r	0.31	0.48	0.46	0.46	r	0.39	0.57	0.28	r	0.81
p value	0.16	0.03	0.03	0.04	p value	0.09	0.01	0.39	p value	0.01
p value summary	ns	*	*	*	p value summary	ns	*	ns	p value summary	*

Abbreviations: 0 m, the time of diagnostic lumbar puncture; 3 m, 3 months after symptom onset; 6 m, 6 months after symptom onset, etc.; CIDP, chronic inflammatory demyelinating polyneuropathy; CSF, cerebrospinal fluid; GBS, Guillain–Barré syndrome; GBSds, GBS disability scale; INCAT, Inflammatory Neuropathy Cause and Treatment disability score; m, months; MMN, multifocal motor neuropathy; ns, not significant; r, Spearman'`s correlation coefficient; y, year.

^* p < 0.05, ^** p < 0.01, ^*** p < 0.001, ^**** p < 0.0001.