Table 6.

Uni- and multivariate logistic regression analysis (adjusted for type of surgery colon/rectum) of the parameters affecting prolonged hospitalization (R ² Nagelkerke = 0.46)

Parameter	Univariate logistic regression			Multivariate logistic regression
	OR	95 % CI	p value	OR	95 % CI	p value
Mechanical bowel preparation	2.25	1.14–4.45	0.02	1.14	0.42–3.11	0.79
No preoperative CHO loading	2.75	1.32–5.73	0.007	1.23	0.41–3.66	0.70
Non-balanced fluid therapy	6.85	2.57–18.21	0.00015	3.87	1.02–14.71	0.046
Peritoneal drainage	5.62	2.62–12.04	0.00001	2.86	1.01–8.14	0.048
Prolonged (> 24 h) catheterization	5.57	1.92–16.17	0.002	4.58	1.33–15.74	0.02
Tolerating oral diet on the first postoperative day	2.77	1.33–5.74	0.007	1.01	0.33–3.10	0.99
Mobilization on the day of surgery	45.81	5.89–356.12	0.0003	20.74	2.25–191.30	0.008
Postoperative complications	2.38	1.10–5.14	0.03	2.00	0.72–5.59	0.18
Colon/rectum	1.61	0.78–4.32	0.19	1.15	0.37–3.56	0.81