Table 1 Demographic distribution of age, sex, BMI, duration of surgery, ASA, and type of operation for the two groups

Age (years)

36.64 ± 11

35.77 ± 5

0.3821

0.538

Sex (female: male) (no.)

34:36

41:29

\({\chi }^{2}\)= 1.4072

0.235

BMI (kg/m²)

21.69 ± 2

21.64 ± 2

0.0119

0.913

Duration of surgery (mean ± SD) (h)

3.11 ± 1

3.01 ± 1

0.5362

0.465

ASA grade

 I

36

37

0.0282

0.867

 II

34

33

Type of surgery

 Large bowel resection

19

22

\({\chi }^{2}\)= 1.9134

0.752

 Gastrectomy

12

13

 Abdominal exploration

12

12

 Hepatectomy

15

9

 CBD exploration

12

14