Wavelet and pain rating index for inhalation anesthesia: A randomized controlled trial

Table 1 Baseline demographic and clinical characteristics of the study participants

	SBP group, n = 21	WLi group, n = 21	PRi group, n = 20	P value
Sex, male/female	13/8	12/9	10/10	0.742
Age in yr	54 ± 6	53 ± 5	52 ± 5	0.747
BMI in kg/m2	24.5 ± 1.8	24.1 ± 1.6	24.0 ± 1.6	0.547
ASA class, I/II	16/5	17/4	15/5	0.891
Duration of surgery in min	134 ± 19	135 ± 12	137 ± 14	0.751
Duration of anesthesia in min	169 ± 18	170 ± 14	171 ± 17	0.920

Values are given as mean ± standard deviation or absolute numbers. ASA: American Society of Anesthesiologists; BMI: Body mass index; PRi: Pain rating index; SBP: Systolic blood pressure; WLi: Wavelet index.