Is Helicobacter pylori infections in immunocompromised children a risk factor for cancer?

The frequency of Helicobacter pylori in children with malignancy was evaluate in the present study. Among 51 children included in the study, 29 children were in malignancy group (79.3% of them having positive one step diagnostic test),while 22 children were control group (54.5% of them having positive one step diagnostic test).h.pylori infection was signifi cantly higher in the malignancy group comparedto the control group (P 0.05); 44.8% having positive culture for H.pylori ,while only 18.2% of control having positive culture for H.pylori. the results showing that there is no signifi cant association between H.pylori and the type of cancer with P 0.05. And there is a signifi cant association between H.pylori and age more than 5 years with p 0.05 which is statistically signifi cant among patient groups. The results also showed that there is no signifi cant association between H.pylori and sex among both patient and control groups with P 0.05.