Table 7. Comparison of symptoms and nerve conduction study results, between patients with various number of abnormal exam components, including vibration perception, distal strength, ankle reflex and gait.

Abnormal Exam components	0 (n = 21)	1 (n = 57)	2 (n = 79)	3 (n = 65)	4 (n = 65)	P value
Symptoms
Sensory (%)	80	88	90	89	78	0.80
Weakness (%)	20	24	26	63	84	<0.0001
Pain (%)	35	49	48	57	53	0.22
Nerve conduction studies
Sural
Amplitude (mV)	5.4 ± 5.3	4.1 ± 6.3	2.8 ± 3	2.3 ± 2.9	1.3 ± 2.7	<0.0001
CV (m/s)	41 ± 5	42 ± 5	41 ± 4	40 ± 5	40 ± 6	0.14
Peroneal
Amplitude (mV)	4 ± 1.6	2.6 ± 1.8	2 ± 1.6	1.3 ± 1.8	0.8 ± 1.3	<0.0001
CV (m/s)	41 ± 4	39 ± 7	37 ± 8	36 ± 7	30 ± 10	<0.0001

Statistically significant p values (<0.05) are bolded.

CV–Conduction velocity