Table 1 Patient baseline characteristics

Age (years)

50.5 [36.3–58.0]

46.0 [34.8–55.0]

0.215

Sex (male/female)

22/18

27/27

0.631

BMI, kg/m²

20.8 ± 3.3

22.0 ± 3.0

0.058

ASA (II/III)

53/1

37/3

0.180

Hypertension, n (%)

1 (3)

6 (11)

0.116

Smoker (yes/no)

10/30

12/42

0.753

Drinker (yes/no)

7/33

10/44

0.899

History of surgical abdominal procedures, n (%)

13 (33)

20 (37)

0.669

Surgical procedures

0.536

Laparoscopic cholecystectomy, n (%)

5 (12.5)

12 (22)

Colorectal surgery, n (%)

32 (80)

39 (72)

Gastrectomy, n (%)

2 (5)

1 (1.8)

Pancreatic surgery, n (%)

1 (2.5)

2 (3.7)

Hemoglobin, g/L

126.0 ± 20.4

130.5 ± 19.9

0.285

Albumin, g/L

41.1 [36.0–44.8]

43.2 [38.6–45.9]

0.046

Prognostic nutritional index

49.4 [45.0–53.4]

51.2 [47.0–55.0]

0.097