Table 3. Study Results.

Author	% IBD Patients H.P. Positive (% CD/%UC)	% Controls H.P. Positive
el-Omar et al. (32)	21.8 (14.9/27.0)	52
Mantzaris et al. (35)	30.0 (NR/30.0)	52.5
Meining et al. (50)	8.3 (8.3/NR)	36.1
Oberhuber et al. (41)	30.5 (33.3/0.0)	35.2
Parente et al. (33)	48.1 (40.7/55.9)	58.8
Wagtmans et al. (31)	12.2 (12.2/NR)	35.4
Duggan et al. (52)	34.2 (33.3/34.7)	36.2
Corrado et al. (43)	0.0 (NR/NR)	23.3
D'Inca et al. (42)	28.7 (28.4/29.3)	39.5
Pearce et al. (34)	17.2 (11.9/21.6)	25
Parente et al. (46)	38.2 (33.3/46.8)	50.3
Parlak et al. (37)	66.7 (62.2/69.7)	63.6
Vare et al. (40)	24.4 (12.9/29.7)	37.1
Feeney et al. (39)	0.05 (0.05/NR)	15.8
	13.9 (NR/13.9)	15.3
Furusu et al. (51)	29.4 (34.6/24.0)	52
Guslandi et al. (38)	15.0 (15.0/NR)	36.7
Pascasio et al. (44)	32.1 (32.1/NR)	46.1
Piodi et al. (47)	47.2 (53.1/42.5)	61.1
Triantafillidis et al. (36)	34.5 (NR/NR)	55.1
Pronai et al. (48)	12.8 (13.7/12.2)	39
Oliveira et al. (53)	52.4 (NR/52.4)	51.4
Oliveira et al. (49)	51.2 (51.2/NR)	70.3
Sladek et al. (45)	9.6 (14.0/0.05)	38.5

NR, not reported; H.P., Helicobacter pylori.