Table 7.

Univariate and multivariate analyses of risk factors for cancer associated CD

Factors	Univariable analysis				Multivariable analysis
	Cancer	OR	95 % CI	P	OR	95 % CI	P
Age at onset
≥24 years	17 (50.0)	1.24	0.62–2.46	0.600
<24 years	17 (50.0)
Sex
Man	26 (76.5)	0.81	0.36–1.81	0.699
Woman	8 (23.5)
Age at first operation
≥37 years	17 (50.0)	3.00	1.51–5.97	0.0022	3.38	1.68–6.79	0.0008
<37 years	17 (50.0)
Site of disease
Ilitis	5 (14.3)	3.45	1.20–9.88	0.0134	3.99	1.54–6.79	0.0027
Ileo-colitis + colitis	29 (85.3)
Anal lesion at initial surgery
Present	23 (67.6)	1.59	0.76–3.29	0.223
Absent	11 (32.4)
Type of disease
Perforating	18 (52.9)	1.52	0.77–3.02	0 221
Non-perforating	16 (47.1)
Active smoking
Yes	7 (20.6)	0.63	0.27–1.47	0.338
No	27 (79.4)
Alcohol habit
Yes	4 (11.8)	0.79	0.27–2.29	0.179
No	30 (88.2)