A cross-sectional study was done on seventy consecutive gastritis patients that were admitted to endoscopy units at Adam Malik General Hospital and Permata Bunda Hospital, Medan, Indonesia from May-October 2014. All patients gave informed consent and the study was approved by the local ethical committee. None of the patients had received antibiotics, bismuth compounds, H2 antagonists, proton pump inhibitors or immune modulating drugs within the last four weeks before endoscopy. Patients with evidence of malignancy, immunosuppression, metabolic disorders, or gastrointestinal haemorrhage and patients who had a history of gastric surgery were excluded [2, 5-7].