Background A growing number of studies suggest that anemia caused by () infection is prevalent in developing countries. A combination of eradication and iron supplementation may be effective in treating iron deficiency anemia (IDA) caused by infection. The aim of this study is to assess the prevalence, risk factors, and treatment outcomes of anemia in Vietnamese school-age children infected with H. pylori Methods A cross-sectional study was conducted from April 2023 to April 2024 involving 112 dyspeptic children from 5 to 16 years old who were admitted to Can Tho Children's Hospital, Vietnam. infection was diagnosed with a positive histopathology combined with a rapid urease test. A bivariate and multivariate logistic regression model was used to identify independent variables associated with anemia in infected children. Results The prevalence of anemia and IDA (iron deficiency anemia) among -infected children were 28.6% and 53.1%, respectively. The risk factor for anemia was age group from 11 to 16 years of age (OR: 3.24; CI 95%:1.21- 8.70). Iron supplementation (OR: 0.14; CI 95%:0.03 - 0.66) and periodic deworming (OR: 0.29; CI 95%: 0.10-0.89) were protective factors against anemia. After eradication and iron supplementation, all hematological parameters were increased among 32 anemic patients. Hemoglobin increased from 9.9 ��2.1 to 11.9��2.1 g/dL (p<0.001), mean corpuscular hemoglobin increased from 25.1 �� 4.1 to 28.0 �� 3.3 pg (P=0.003), and ferritin (IQR) increased from 16.7 (9.5-45.2) to 27.0 (15.1-47.0) ��g/L (p<0.001). Conclusion Anemia in Vietnamese school-age children infected with is prevalent. Taking iron supplements and periodic deworming reduces the risk of anemia. eradication therapy plus oral iron supplementation will improve iron status in -infected children.
