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KMID : 1142720180210030058
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Annals of Clinical Microbiology
2018 Volume.21 No. 3 p.58 ~ p.63
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Multicenter Study on the Association of Positive Helicobacter pylori Stool Antigen to Anemia in Children
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Sung Heung-Sup
Kim Mi-Na
Yong Dong-Eun
Lee Mi-Ae
Lee Jong-Wook
Lee Mi-Kyung
Chae Hiun-Suk
Lee Hae-Kyung
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Abstract
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Background: Helicobacter pylori infection in children causes gastrointestinal symptoms and iron deficiency anemia. This study aimed to investigate trends in H. pylori stool antigen (HpSA) positivity in children and the relationship between HpSA test results and anemia.
Methods: We analyzed the results of 2,762 HpSA tests and the correlation of hemoglobin and ferritin with HpSA in patients aged 0-18 years from 2008 to 2014 at a tertiary care center. Additionally, we prospectively evaluated HpSA test results and correlation with hemoglobin in 352 specimens obtained from five centers.
Results: From 2008-2014, the mean positive rate of the HpSA test was 5.8%, with a high of 9.1% in 2012 and a low of 2.3% in 2013. The positive rate correlated with age: 2.9% in 06-year-olds, 5.8% in 712-year-olds, and 10.6% in 13-18-year-olds (P＜0.0001). There was no difference in HpSA positivity in patients with (7.0%) and without (5.7%) anemia. Ferritin was significantly lower in patients with positive HpSA results than in those with negative results (P=0.0001). In a multicenter study, the positive rate of HpSA was 16.8%.
Conclusion: The rate of HpSA positivity was 5.8% in pediatric patients at a single center from 20082014, and this rate increased with age. Helicobacter pylori infection may be associated with iron deficiency, as ferritin level was significantly lower in HpSA-positive patients than HpSA-negative patients.
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KEYWORD
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Anemia, Ferritin, Helicobacter pylori, Hemoglobin, Stool antigen
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