Association between operative position and postoperative nausea and vomiting in patients undergoing laparoscopic sleeve gastrectomy

Table 2 Clinical data of the patients

Variable	The supine position group	The supine split-leg position group	P value
Preparation time before surgery (minute)	35.00 (28.75, 50.00)	35.00 (28.75, 50.00)	0.834
Operation time (minute)	140.60 ± 32.26	168.23 ± 46.24	0.009a
Anesthesia recovery time (minute)	42.5 (39.00, 55.00)	50.00 (40.00, 70.00)	0.05
Hospitalization time (day)	4 (1)	4 (0)	0.181

^aP < 0.05.

Normal distribution was expressed as the mean ± SD, non-normal distribution is expressed as median (interquartile spacing). The percentage (95% confidence interval) was for categorical variables.