Table 3.

REMI Ce and OAA/S score during the procedure.

		T1	T2	T3	T4
REMI Ce	Group 1	0 ± 0	1.44 ± 0.25	1.70 ± 0.33	1.70 ± 0.33
	Group 2	0 ± 0	1.89 ± 0.21†	1.91 ± 0.25*	1.91 ± 0.25*
OAA/S score	Group 1	5 (5–5)	3 (2–3)	3 (2–3)	3 (2–3)
	Group 2	5 (5–5)	3 (2–4)	3 (2–4)	3 (2–4)

Data are shown as mean ± SD. Group 1: initial REMI Ce of 1.0 ng/mL; Group 2: initial REMI Ce of 2.0 ng/mL.

Ce = effect-site concentration, OAA/S = observer assessment of alertness/sedation, REMI = remifentanil, SD = standard deviation, T1 = before anesthesia induction, T2 = time of the probe insertion, T3 = time of the needle biopsy, T4 = time of the end of procedure.

^*P < .05 compared with Group 1 at each time point measurement.

^†P < .001 compared with Group 1 at each time point measurement.