Table 2.

Protective factors for small bowel cancer in Crohn’s disease

		Protective factor against small bowel cancer?
		Yes	No
1	Diet	1Negri et al[25]	2Chow et al[77]
2	5-ASA	Piton et al[21]
		Solem et al[26]
3	CD medications		Canavan et al[76]
			Solem et al[26] (other than 5-ASA)

¹Coffee, fish, vegetables, fruit;

²Fruits and vegetables. 5-ASA: 5-aminosalicylic acid.