Evidence map›Paper›PMID 23316928›Full record

ArticleHelicobacter2013

The effect of Helicobacter pylori infection on iron stores and iron deficiency in urban Alaska Native adults.

Karen Miernyk, Dana Bruden, Carolyn Zanis, Brian McMahon, Frank Sacco, Thomas Hennessy, Alan Parkinson, Michael Bruce

Abstract read
In one paragraph

Article in Helicobacter, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
1.2field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Guideline
  4. Trial
  5. Article
  6. Article
  7. Research progress on the relationship betweenFrontiers in microbiology · 2025
    Review
  8. Article
  9. Diagnostics (Basel, Switzerland) · 2023
    Article
  10. Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Karen MiernykAlaska Native Tribal Health Consortium, Anchorage, AK, USA. kmiernyk@cdc.gov
Dana Bruden
Carolyn Zanis
Brian McMahon
Frank Sacco
Thomas Hennessy
Alan Parkinson
Michael Bruce
Centers for Disease Control and Prevention · USAlaska Native Tribal Health Consortium · USNational Center for Emerging and Zoonotic Infectious Diseases · US

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

backgroundHelicobacter pylori (H. pylori) infection has been correlated with low serum ferritin and iron deficiency. As a secondary analysis of a study of H. pylori reinfection, we investigated the association of H. pylori infection and the effect of its eradication on serum ferritin and iron deficiency.

methodsAlaska Native adults undergoing esophagogastroduodenoscopy had sera collected and a (13) C urea breath test (UBT) was performed. Those H. pylori positive were treated with an antibiotic regimen; those who tested negative 2 months after treatment were evaluated at 4, 6, 12, and 24 months by UBT and serum ferritin with an immunoradiometric assay. We excluded persons from further analysis if they were prescribed iron by their provider.

resultsWe measured serum ferritin for 241 persons; 121/241 were H. pylori positive. The geometric mean ferritin (GMF) for persons with and without H. pylori infection was 37 μg/L and 50 μg/L, respectively (p = .04). At enrollment, 19/121 H. pylori-positive persons had iron deficiency compared with 8/120 H. pylori negative (p = .02). Among 66 persons tested at 24 months, the GMF was higher at 24 months (49.6 μg/L) versus enrollment (36.5 μg/L; p = .02). Six of 11 persons with iron deficiency at enrollment no longer had iron deficiency and had a higher GMF (p = .02) 24 months after treatment.

conclusionsH. pylori infection was correlated with lower serum ferritin and iron deficiency. After H. pylori eradication, serum ferritin increased and approximately half of persons resolved their iron deficiency. Testing for H. pylori infection and subsequent treatment of those positive could be considered in persons with unexplained iron deficiency.

Indexed as

InuitUrban PopulationAdultAlaskaAnemia, Iron-DeficiencyAnti-Bacterial AgentsFemaleFerritinsHelicobacter InfectionsHelicobacter pyloriHumansIndians, North AmericanIronIron DeficienciesMaleMiddle AgedAnti-Bacterial AgentsFerritinsIron

Identifiers

PMID23316928
PMCPMC4565132
OpenAlexW2018880163

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.