Table 3 Comparison between mean scores of postoperative gastrointestinal functional recovery and length of hospital stay among participants

First bowel movement (h)

 Min.–Max

6–10

8–12

 Mean ± SD

8.1 ± 1.16

10 ± 1.11

− 6.484

< 0.001**

First flatus passage (h)

 Min.–Max

3–16

6–17

 Mean ± SD

12.6 ± 2.46

15.1 ± 2.04

− 4.287

< 0.001**

First stool passage (days)

 Min.–Max

1–4

2–5

 Mean ± SD

2.47 ± 0.82

3.57 ± 0.82

− 5.207

< 0.001**

Length of hospital stay (days)

 Mean ± SD

6.93 ± 1.29

12.3 ± 4.96

− 5.200

< 0.001**

 ≤ 5 days n (%)

10 (33.3)

0 (0.0)

17.389

< 0.001**

 From 6 to 10 days n (%)

19 (63.3)

20 (66.7)

 > 10 days n (%)

1 (3.3)

10 (33.3)