Table 3.

Median ultrasound pattern sum score (UPSS) data

	UPSS Median (range)	UPSA Median (range)	UPSB Median (range)	UPSC Median (range)
GBS n = 33	4, 1–9	2, 0–5	2, 0–3	0, 0–2
CIDP <4 weeks n = 17	7, 1–20	4, 0–15	2, 0–3	1, 0–3
CIDP >4 weeks n = 17	8, 2–22	5, 1–16	2, 0–3	1, 0–3
All CIDP	8, 1–22	5, 0–16	2, 0–3	1, 0–3
p values* (t test with Bonferroni)	0.001 0.001 0.001 1.0**	0.001 0.001 0.001 1.0**	1.0 0.427 0.313 0.795**	0.001 0.001 0.001 0.231**

All CIDP patients, even the subgroups consisting of those with less and those with more than 4 weeks of symptoms, had significantly larger values for UPSA, UPSC, and UPSS, but not for UPSB

GBS = Guillain–Barré syndrome; CIDP = chronic inflammatory demyelinating polyradiculoneuritis

*Comparison of GBS to CIDP < 4 weeks, > 4 weeks, and all CIDPs (p values < 0.05 are significant; nonsignificant differences are in italic). **Between CIDP < 4 weeks and > 4 weeks, no significant differences occur