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. 2012 Mar 2;61(8):1140–1145. doi: 10.1136/gutjnl-2011-301971

Table 6.

Association of the selected variables with the criteria defining 15-year Crohn's disease (CD) severity

	Age <33 years^*		Lower educational level		Ever smoking		Rectal involvement		CD duration <7 years^*
N	300		365		303		229		300
Activity >3 years	172 (57)	0.001	190 (52)	0.01	171 (56)	0.001	122 (53)	0.03	172 (57)	0.001
Activity >3 years	114 (38)	0.001	96 (41)	0.01	115 (39)	0.001	164 (44)	0.03	114 (38)	0.001
>1 bowel surgery	35 (12)	NS	37 (10)	NS	31 (10)	NS	22 (10)	NS	34 (11)	NS
>1 bowel surgery	23 (8)	NS	21 (9)	NS	27 (9)	NS	36 (10)	NS	24 (8)	NS
Permanent stoma^†	21 (7)	NS	32 (9)	0.04	22 (8)	NS	30 (15)	0.001	20 (7)	NS
Permanent stoma^†	21 (8)	NS	10 (5)	0.04	20 (7)	NS	12 (3)	0.001	22 (8)	NS
CD-related death	3 (1)	0.003	13 (4)	NS	9 (3)	NS	10 (4)	NS	8 (3)	NS
CD-related death	20 (7)	0.003	10 (4)	NS	14 (5)	NS	13 (4)	NS	15 (5)	NS
Any criteria	182 (61)	0.001	212 (58)	0.005	182 (60)	0.001	139 (61)	0.005	187 (62)	0.001
Any criteria	139 (46)	0.001	109 (46)	0.005	139 (47)	0.001	182 (49)	0.005	134 (45)	0.001

^*

Median value for the 600 patients.

^†

Patients with prior permanent stoma excluded.

NS, not significant.