Table 5.

Correlations between MRC score and corresponding ultrasonographic data in different muscles/nerves.

Muscle	Ultrasonographic data		Correlation coefficient	p value
Flexor carpi radialis (median nerve)	CSAmax	CIDP	−0.197	0.223
		MMN	−0.107	0.654
	Abnormal fascicles	CIDP	−0.069	0.674
		MMN	−0.209	0.378
	Intranerve variability	CIDP	−0.588	0.001
		MMN	−0.002	0.993
First dorsal interosseous (ulnar nerve)	CSAmax	CIDP	−0.176	0.276
		MMN	−0.020	0.932
	Abnormal fascicles	CIDP	−0.059	0.717
		MMN	−0.057	0.813
	Intranerve variability	CIDP	−0.314	0.048
		MMN	−0.050	0.834
Tibialis anterior (peroneal nerve)	CSA popliteal fossa	CIDP	−0.241	0.145
		MMN	−0.080	0.737
	CSA fibular head	CIDP	−0.371	0.228
		MMN	−0.014	0.954
	Abnormal fascicles	CIDP	−0.360	0.324
		MMN	−0.247	0.194
Gastrocnemius/soleus (tibial nerve)	CSA popliteal fossa	CIDP	−0.298	0.132
		MMN	−0.040	0.868
	CSA ankle	CIDP	−0.200	0.250
		MMN	−0.169	0.213
	Abnormal fascicles	CIDP	−0.267	0.146
		MMN	−0.190	0.423

CSA: cross-sectional area (mm²).

MRC: medical research council.