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Table 1 Demographic data and intraoperative outcomes

From: The ED50 and ED95 of esketamine for preventing early postoperative pain in patients undergoing laparoscopic cholecystectomy: a prospective, double-blinded trial

Index

Group E(n = 27)

Group C(n = 27)

χ2/t/z value

P value

Age (year)

56(41, 67)

55(51, 61)

-0.009

0.993

Gender (male/female)

8/19

9/18

0.086

0.770

BMI (kg/m2)

23.74(23.15, 24.46)

22.86(22.10, 24.57)

-1.479

0.139

ASA classification (I/II)

11/16

13/14

0.300

0.584

Duration of surgery (min)

41(35, 53)

40(36, 50)

-0.026

0.979

Sufentanil doses (μg)

28.44 ± 4.65

27.15 ± 4.35

1.058

0.833

Remifentanil doses (μg)

608(488, 796.5)

631(490, 764.5)

-0.156

0.876

Propofol doses (mg)

196.5(148.5, 251)

205(161, 263)

-0.493

0.622

  1. Notes: ASA, American Society of Anesthesiologists; BMI, body mass index; Propofol doses, intraoperative maintenance doses. Data are expressed as number, the mean ± standard deviation or medians (quartiles). Measurement data is treated with the t-test, or Mann-Whithey U test, enumeration data is treated with the chi-square test