Table 1.

Temperature effect on NET indices of the median sensory axons for both normal controls (NC) and IEM patients (IEM).

	Baseline			Cooling
	NC (n = 10)	IEM (n = 4)	p*	NC (n = 10)	IEM (n = 4)	p**
Age (year)	27.7 ± 0.7	27.3 ± 3.8	1.000	27.7 ± 0.7	27.3 ± 3.8	1.000
Temperature (°C)	36.2 ± 0.3	36 ± 0.4	0.831	25.6 ± 1.4	24.4 ± 1.2	0.887
Strength–duration curve
Rheobase (mA)	1.81 ± 0.18	1.41 ± 0.23	0.724	1.92 ± 0.14	1.62 ± 0.2	0.525
SDTC (ms)	0.554 ± 0.019	0.737 ± 0.063	0.020	0.558 ± 0.013	0.66 ± 0.043	0.056
Threshold Electrotonus (TE)
TEd(10–20ms) (%)	60.1 ± 2.1	59.1 ± 2.2	0.525	51.1 ± 2.2	57.4 ± 1.6	0.179
TEd(90–100ms) (%)	56.8 ± 2.2	50.6 ± 3.2	0.179	56.2 ± 2	49.5 ± 1.8	0.056
TEh(10–20ms) (%)	−82.3 ± 3.2	−83.8 ± 3.1	0.621	−79 ± 3.1	−82.6 ± 4	0.437
TE h(90 – 100ms) (%)	−143.9 ± 8.2	−118.6 ± 8.8	0.104	−144.1 ± 7	−131.8 ± 3.6	0.358
TE h99ms (%)	−144.8 ± 8.2	−116.8 ± 9.2	0.138	−145.7 ± 6.9	−131.4 ± 3.4	0.358
TEh,slope (101–140) (%/ms)	2.32 ± 0.13	2.32 ± 0.17	1.000	2.05 ± 0.1	2.42 ± 0.11	0.104
TEh,overshoot (%)	19.9 ± 1.8	23.6 ± 3.1	0.289	21.3 ± 2.1	25.7 ± 2.4	0.289
Recovery cycle
Relative refractory period (ms)	3.97 ± 0.37	4.91 ± 0.47	0.138	5.91 ± 0.79	6.61 ± 1.17	0.933
Refractoriness (%)	49.3 ± 17.1	136.3 ± 79.4	0.138	113.5 ± 30.9	98.7 ± 66.3	0.915
Superexcitability (%)	−23.7 ± 1.9	−15.5 ± 1.6	0.040	−18.7 ± 2.4	−11.8 ± 5.6	0.358
Subexcitability (%)	10 ± 0.7	10.4 ± 0.5	0.438	8.2 ± 0.7	9.1 ± 0.5	0.437
Current–threshold (I/V) curve
Hyperpolarizing IV slope	0.348 ± 0.031	0.324 ± 0.042	0.832	0.283 ± 0.033	0.251 ± 0.021	0.944
IV–80%(%)	−290.7 ± 10.2	−236.5 ± 14.2	0.020	−320.6 ± 8.6	−301 ± 17.1	0.437
IV–100%(%)	−352.2 ± 12.8	−301.5 ± 21.3	0.077	−397.2 ± 11	−382.6 ± 23.6	0.525

This table made by conducting Mann–Whitney test, and the distribution was presented by mean ± S.E.M.

*Compared to NC at normal temperature.

**Compared to NC at cooling.