Table I.

Demographic data of patients in each experimental group.

Parameters	Saline+GA (n=23)	Ketamine+GA (n=21)	Bupivacaine+GA (n=20)	Ket+bupi+GA (n=20)
Sex (male/female)	7/16	6/15	8/12	7/13
ASA status (I/II/III)	5/13/5	6/9/6	8/7/5	6/9/5
Height, cm	161.42±21.04	162.44±20.10	160.34±17.34	162.33±23.73
Weight, kg	71.44±13.30	75.43±12.02	73.64±12.93	76.23±10.45
Age, years	54.12±7.11	55.78±9.34	57.11±10.11	56.77±9.77
Duration of surgery, min	124.57±11.34	119.43±30.95	121.32±28.37	119.32±28.37

Data are presented as the mean ± standard deviation unless otherwise stated. GA, general anesthesia; Ket+bupi, ketamine and bupivacaine.