Table 2. Univariate and Multivariate Analysis for Factors Associated With Intestinal Resection.

Variable	Univariate P-value	Multivariate
		OR (95% CI)	P-value
Sex
Malea
Female	0.075	0.92 (0.53–1.59)	0.780
Age at diagnosisb
A1a
A2	0.041	1.59 (0.74–3.42)	0.220
A3	0.052	1.64 (0.63–4.30)	0.300
Locationb
L1a
L2	0.280	0.79 (0.42–1.49)	0.470
L3	0.030	0.86 (0.51–1.47)	0.590
Behaviorb
B1a
B2	<0.001	12.00 (6.80–21.17)	<0.001
B3	<0.001	14.53 (7.56–27.92)	<0.001
Perianal fistula	0.008	0.24 (0.11–0.47)	<0.001

^aReference categories for OR estimation.

^bAge, disease location, and disease behavior in CD based on the Montreal classification.

A1, <17; A2, 17≤age≤40; A3, >40; L1, ileal; L2, colonic; L3, ileocolonic; B1, non-stricturing, non-penetrating; B2, stricturing; B3, penetrating.