Low-Dose Ketamine Infusion for Perioperative Pain Management in Patients Undergoing Laparoscopic Gastric Bypass: A Prospective Randomized Controlled Trial

Table 1

Lists demographic data between the groups.

Demographic information between groups
	C	K	Total	value
	(N = 18)	(N = 17)	(N = 35)
Age				0.1877^2
N	18	17	35
Mean (SD)	49.3 (10.1)	54.2 (11.5)	51.7 (10.9)
Range	(30.0–65.0)	(33.0–69.0)	(30.0–69.0)
ASA				0.0928^2
N	18	17	35
Mean (SD)	2.6 (0.5)	2.8 (0.4)	2.7 (0.5)
Range	(2.0–3.0)	(2.0–3.0)	(2.0–3.0)
BMI				0.5152^2
N	18	17	35
Mean (SD)	45.8 (5.1)	44.7 (5.0)	45.3 (5.0)
Range	(39.4–58.4)	(37.3–53.3)	(37.3–58.4)
Gender				0.1761^1
F	16 (88.9%)	12 (70.6%)	28 (80.0%)
M	2 (11.1%)	5 (29.4%)	7 (20.0%)

¹Chi-square. ²Equal variance t-test. ASA = American Society of Anesthesiologists physical classification status and BMI = body mass index.