Effect of Intravenous High Dose Vitamin C on Postoperative Pain and Morphine Use after Laparoscopic Colectomy: A Randomized Controlled Trial

Table 1

Patient characteristics and perioperative data.

Group	Placebo	Vitamin C	value
	()	()
Age (y)			0.65
Sex (male/female)	29/21	28/22	0.84
Height (cm)			0.74
Weight (kg)			0.67
ASA PS (I/II)	16/34	15/35	0.83
Duration of surgery (min)			0.90
Duration of anesthesia (min)			0.20
Fluid (mL)			0.58
Estimated blood loss (mL)			0.62

Data are shown as mean ± standard deviation. ASA, American Society of Anesthesiologists Physical Status.