Table 7.

Model Analysis of Postoperative Outcomes in Crohn’s Disease Patients using Multivariate Logistic Regression and Serum anti-TNFα Drug Level Cut-off Value of 3 µg /ml

Overall Postoperative Morbidity
	Variable	Odds Ratio	95% Confidence Interval	P value
1.	Serum anti-TNFα drug level ≥ 3 µg/ml	2.41	1.03 – 5.68	0.04
	Steroids alone	1.47	0.45 – 4.82	0.53
2.	Serum anti-TNFα drug level ≥ 3 µg/ml	2.52	1.07 – 5.92	0.03
	6-Mercaptopurine alone	0.95	0.39 – 2.29	0.91
3.	Serum anti-TNFα drug level ≥ 3 µg/ml	2.45	1.04 – 5.78	0.04
	Azathioprine alone	0.78	0.16 – 3.91	0.76
4.	Serum anti-TNFα drug level ≥ 3 µg/ml	1.91	0.66 – 5.51	0.23
	Albumin alone	0.42	0.18 – 0.99	0.05
Infectious Complications
1.	Serum anti-TNFα drug level ≥ 3 µg/ml	2.86	1.01 – 8.08	0.04
	Steroids alone	1.79	0.37 – 8.6	0.46
2.	Serum anti-TNFα drug level ≥ 3 µg/ml	3.34	1.16 – 9.57	0.02
	6-Mercaptopurine alone	0.5	0.17 – 1.41	0.19
3.	Serum anti-TNFα drug level ≥ 3 µg/ml	2.92	1.03 – 8.26	0.04
	Azathioprine alone	0.66	0.08 – 5.71	0.71
4.	Serum anti-TNFα drug level ≥ 3 µg/ml	3.03	0.82 – 11.21	0.09
	Albumin alone	0.63	0.24 – 1.65	0.35