Table 2. Predicted plasma concentration of remimazolam in LP and SP groups.

Variables	SP	LP	P value
Patients, n	31	34
At the end of remimazolam infusion, μg/ml	0.278 (0.218–0.368)	0.277 (0.198–0.355)	0.371
At the time of extubation, μg/ml	0.146 (0.107–0.214)	0.101(0.070–0.139)	0.000 *

Data are median (IQR; 25% ‒ 75% interquartile range).

*significant difference.

SP, short period (time to extubation < 15 min); LP, long period (time to extubation ≥ 15 min).