Table 2.

Studies on the prevalence of HP in morbidly obese patients who underwent bariatric surgery

Authors, year/type of study	No. of patients	HP prevalence (%)	Control	HP (%)
Renshaw et al.[9] 2001/ Retrospective	56	38	500	21
Papasavas et al.[11] 2008/ Retrospective	259	22.4
Vanek et al.[12] 2006/ Retrospective	96	11
De moura et al.[13] 2008/ Prospective	96	37.5
Erim et al.[14] 2008/ Prospective	240	61		48
Azaqury et al.[16] 2006/ Retrospective	319	39
Schermier et al[18] 2002/ Prospective	206	30
Current study retrospective	62	85.5

HP: Helicobacter pylori