Table 1.
Data of SSEP Amplitude and Latency
| Left hindlimb (mean [SD]) | Right hindlimb (mean [SD]) | p value (intra-level)a | p value (inter-level)b (left/right) | |
|---|---|---|---|---|
| Amplitude (μV) | ||||
| Level 36°C | 37.04 (4.69) | 36.67 (6.05) | 0.64 | |
| Post-rewarm | 36.73 (4.60) | 36.09 (6.19) | 0.51 | 0.99/0.70 |
| Level 30°C | 31.25 (5.20) | 31.94 (6.16) | 0.33 | <0.01 for both |
| Level 26°C | 28.23 (5.75) | 29.23 (5.80) | 0.21 | <0.01 for both |
| Level 22°C | 26.71 (6.70) | 27.06 (6.53) | 0.60 | <0.01 for both |
| Level 18°C | 23.90 (6.53) | 24.78 (6.08) | 0.19 | <0.01 for both |
| Latency (ms) | ||||
| Level 36°C | 1.4572 (0.2957) | 1.4611 (0.3174) | 0.93 | |
| Post-rewarm | 1.4572 (0.2944) | 1.4617 (0.3173) | 0.92 | >0.05 for both |
| Level 30°C | 1.4567 (0.2934) | 1.4650 (0.3132) | 0.85 | >0.05 for both |
| Level 26°C | 1.4444 (0.3047) | 1.4511 (0.3295) | 0.88 | >0.05 for both |
| Level 22°C | 1.4600 (0.2932) | 1.4661 (0.3161) | 0.89 | >0.05 for both |
| Level 18°C | 1.4833 (0.2924) | 1.4967 (0.3188) | 0.76 | <0.01 for both |
a
Intra-level: compare left hindlimb and right hindlimb in the same thermo level.
b
Inter-level: compare the corresponding group with level 36°C on both hindlimbs, respectively.
Paired t-test is used for intra-level and repeated measures ANOVA for inter-level comparisons, respectively.
Data of SSEP latency are not rounded to two decimal places for precise comparison.
SSEP, somatosensory-evoked potential.