Evidence map›Paper›PMID 21705484›Full record

ArticleCirculation. Heart failure2011

Iron deficiency in community-dwelling US adults with self-reported heart failure in the National Health and Nutrition Examination Survey III: prevalence and associations with anemia and inflammation.

Ankit Parikh, Sundar Natarajan, Stuart R Lipsitz, Stuart D Katz

Open access · bronzeAbstract read
In one paragraph

Article in Circulation. Heart failure, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 1 pooled it
4.1field-weighted citation impact, top 6% 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

48 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Benefits of intravenous iron supplementation in heart failure.Global cardiology science & practice · 2024
    Article
  9. Article
  10. Article
  11. Iron Deficiency in Heart Failure: A Korea-Oriented Review.International journal of heart failure · 2023
    Review
  12. Treatment of Iron Deficiency in Heart Failure.Current cardiology reports · 2023
    Review
  13. Iron Deficiency in Korean Patients With Heart Failure.Journal of Korean medical science · 2023
    Article
  14. Article
  15. Article
  16. Article
  17. Iron Deficiency in Heart Failure and Pulmonary Hypertension.Current treatment options in cardiovascular medicine · 2022
    Article
  18. Review
  19. Review
  20. Review
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

4 authors at 2 institutions in 1 country.

Ankit ParikhDepartment of Internal Medicine, New York University Langone Medical Center, New York, NY, USA. ankit.parikh@nyumc.org
Sundar Natarajan
Stuart R Lipsitz
Stuart D Katz
Brigham and Women's Hospital · USVA NY Harbor Healthcare System · US

Funding

INFERENCE IN REGRESSION MODELS WITH MISSING COVARIATESR01CA074015 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI IBRAHIM, JOSEPH G · 1997 to 2010
$1.7M
Semiparametric Bayesian Survival AnalysisR01CA069222 · NCI · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI SINHA, DEBAJYOTI · 2002 to 2010
$1.3M
STATISTICAL METHODS FOR LONGITUDINAL STUDIESR01GM029745 · NIGMS · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI FITZMAURICE, GARRETT M · 1985 to 2005
$1.1M
Statistical Methods of Cardiotoxicity Studies in AidsR01AI060373 · NIAID · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI LIPSITZ, STUART R. · 2005 to 2007
$800k
SEMIPARAMETRIC BAYESIAN METHODS FOR SURVIVAL DATAR29CA069222 · NCI · UNIVERSITY OF NEW HAMPSHIRE · PI SINHA, DEBAJYOTI · 1995 to 1999
–
HSRD VA IIR 04-170NCI NIH HHS CA 069222NCI NIH HHS CA 74015NCI NIH HHS R01 CA069222NCI NIH HHS R01 CA074015NCI NIH HHS R29 CA069222NIAID NIH HHS AI 60373NIAID NIH HHS R01 AI060373NIGMS NIH HHS GM 29745NIGMS NIH HHS R01 GM029745
6 · The paper itself

Abstract

backgroundIron deficiency has been proposed as a potential therapeutic target in heart failure, but its prevalence and association with anemia and clinical outcomes in community-dwelling adults with heart failure have not been well characterized. METHODS AND

resultsUsing data from the Third National Health and Nutrition Examination Survey, we evaluated the associations between iron deficiency, hemoglobin, C-reactive protein (CRP), and all-cause and cardiovascular mortality in 574 adults with self-reported heart failure. Iron deficiency was defined in both absolute and functional terms as a ferritin level <100 μg/L or between 100 and 299 μg/L if the transferrin saturation was <20%. Iron deficiency was present in 61.3% of participants and was associated with reduced mean hemoglobin (13.6 versus 14.2 g/dL, P=0.007) and increased mean CRP (0.95 versus 0.63 mg/dL, P=0.04). Over a median of 6.7 years of follow-up, there were 300 all-cause deaths, 193 of which were from cardiovascular causes. In age- and sex-adjusted Cox proportional hazards models, hemoglobin, CRP, and transferrin saturation but not iron deficiency were significantly associated with all-cause and cardiovascular mortality. In multivariate models, hemoglobin remained an independent predictor of cardiovascular mortality, whereas CRP remained an independent predictor of both all-cause and cardiovascular mortality.

conclusionsIron deficiency is common in heart failure and is associated with decreased hemoglobin and increased CRP. In multivariate analysis, hemoglobin was associated with cardiovascular mortality while CRP was associated with both all-cause and cardiovascular mortality. Iron deficiency was not associated with all-cause or cardiovascular mortality in this cohort.

Indexed as

Nutrition SurveysResidence CharacteristicsSelf ReportAgedAnemia, Iron-DeficiencyCohort StudiesComorbidityC-Reactive ProteinCross-Sectional StudiesFemaleHealth SurveysHeart FailureHemoglobinsHumansInflammationIron DeficienciesC-Reactive ProteinHemoglobinsTransferrin

Identifiers

PMID21705484
PMCPMC3180903
OpenAlexW2548124544

What OpenQuestion holds

Textmetadata
LicenceTDM
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.