Table 4. Result of Multiple Regression Analysis with ΔBIS = BIS Baseline − BIS Myorelaxation as Dependent Variable (n = 45)

Baseline = study period (20 min) before administration of myorelaxant; myorelaxation = study period (20 min) after administration of myorelaxant; BIS = bispectral index; TOTPOW = total power of the signal; EMG = electromyographic activity; SQI = signal quality index.