Table 2. Clinical trials studies considered in meta-analysis .

Study name	IBD number	Non-IBD number	Sex (F:M)	CD number	UC number
Nightingale et al (67)	38	46	57:27	32	6
McConnell et al (68)	40	17	24:16	25	15
Ishii et al (69)	39	59	22:76	39	0
Kumar et al (70)	48	48	21:27	11	37
Parks et al (71)	133	1156	-	-	-