Table 3. Univariate analysis for complications according to basic characteristics and multivariate analysis with stepwise forward regression.

	Univariate Regression for occurrence of complications			Multivariate Regression for occurrence of complications
Characteristics	p	OR	95% CI	P	OR	95% CI
Albumin preoperative	0.28	1.040	0.969–1.115
Albumin postoperative	0.40	0.967	0.895–1.046
Δ albuminlow/ Δ albuminhigh	0.01*	1.443	1.198–4.984	0.04*	2.232	1.029–4.844
Conversion	<0.001*	5.348	2.426–11.791	<0.001*	5.577	2.370–13.121
Urgency	0.12	0.340	0.87–1.330
Complexity	0.75	0.883	0.413–1.888
Operation time	0.01*	1.007	1.002–1.013
Age	0.02*	1.034	1.006–1.062
Gender	0.45	1.322	0.645–2.709
BMI	0.16	1.060	0.977–1.149
Smoking	0.48	1.285	0.637–2.588
Immuno- suppression	0.33	1.523	0.650–3.567
Number of prior surgeries (Crohn related)	0.56	1.175	0.680–2.030
Stenosis	0.97	0.987	0.545–1.788
Abscess	0.08	0.405	0.148–1.111
Fistula	0.92	1.026	0.623–1.687
Inflammatory mass	0.006*	0.342	0.159–0.735	0.003*	0.280	0.121–0.648

* p<0.05, significant