Table 4.

Per protocol analysis of primary and secondary endpoints

	Restricted (n = 18)	Standard (n = 25)	Absolute Risk Reduction (95% confidence interval)
Primary endpoint
Postoperative hospital stay (days), mean (SD)	7.9 (2.4)	7.3 (3.0)
Median (IQR)	7.0 (6.0–10.0)	7.0 (5.5–8.0)	0.337*
Secondary endpoints
Postoperative complications	4	6	-0.018 (-0.273 to 0.237)
- Major complications	1	3	-0.064 (-0.230 to 0.101)
- Re-admission	1	3
- Minor complications	3	0	0.047 (-0.168 to 0.261)
- Wound infection	3	0
Gastric function
- First flatus (days)	2.5 (1.2)	2.8 (1.5)
Median (IQR)	3 (1.3–3)	3 (1–4)	0.569*
- First defecation (days)	3.5 (1.2)	3.3 (1.6)
Median (IQR)	4 (2.8–4)	4 (2–5)	0.958*
- Removal nasogastric tube (days)	2.1 (1.2)	1.8 (1.2)
Median (IQR)	2 (1–3)	1(1–2)	0.471*
- Removal of epidural catheter (days)	3.5 (1.3)	3.6 (1.3)
Median (IQR)	4 (3–4)	4 (3–4)	0.707*
- Removal of IV catheter (days)	3.9 (1.1)	3.8 (1.3)
Median (IQR)	4 (3–5)	4 (3–5)	0.801*
- Normal diet (days)	3.8 (1.6)	3.6 (1.7)
Median (IQR)	4 (2–5)	3 (3–4)	0.577*

* = p-values according to Mann-Whitney U test