Table 4: Relationships between prevalence of H. pylori infection and history of digestive diseases.

FactorsNo. of subjects in Hp positive groupNo. of subjects in Hp negative groupTotal no. of subjectsPrevalence of HpOR (95% CI)P value

History of digestive diseases50137487557.26%0.71 (0.61–0.82)0.000
 Gastroenteritis32426258655.29%0.67 (0.57–0.80)0.000
 Peptic ulcer918717851.12%0.57 (0.42–0.76)0.000
 Esophagitis53328562.35%0.95 (0.61–1.49)0.838
 Hepatitis734611961.34%0.91 (0.63–1.33)0.636