showed a trendp = 0.05
Compared to those of HC, the motor nerve excitability of the patients with N 2 O abuse showed a trend of decreased peak response (7.08 ± 0.87 mV, p = 0.05), increased latency (7.09 ± 0.28 ms, p < 0.01), increased superexcitability (−32.95 ± 1.74%, p < 0.05), and decreased TE accommodation to depolarizing current [TEd [40–60 ms] 56.53 ± 0.70%, p < 0.05].