Evidence map›Paper›PMID 21277514›Full record

ArticleAnnals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology2011

Association of maternal anemia with increased wheeze and asthma in children.

Elizabeth W Triche, Lisbet S Lundsberg, Paige G Wickner, Kathleen Belanger, Brian P Leaderer, Michael B Bracken

Open access · greenAbstract read
In one paragraph

Article in Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Machine learning-based early prediction of asthma in preschoolers: The COCOA birth cohort study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2025
    Article
  4. Observational
  5. Review
  6. [Association of pregnancy factors with cow's milk protein allergy in infants].Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences · 2024
    Article
  7. Article
  8. Scientific opinion on the tolerable upper intake level for folate.EFSA journal. European Food Safety Authority · 2023
    Article
  9. Article
  10. Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Haemoglobin concentrations in pregnancy and respiratory and allergic outcomes in childhood: Birth cohort study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2017
    Article
  19. Article
  20. 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

6 authors at 3 institutions in 1 country.

Elizabeth W TricheBrown University, Department of Community Health/Epidemiology, Providence, RI, USA. Elizabeth_triche@brown.edu
Lisbet S Lundsberg
Paige G Wickner
Kathleen Belanger
Brian P Leaderer
Michael B Bracken
Providence Center · USYale University · USBrown University · US

Funding

Perinatal Risk of Asthma in Infants of Asthmatic MothersR01AI041040 · NIAID · YALE UNIVERSITY · PI BRACKEN, MICHAEL B · 1996 to 2007
$3.8M
Paraxanthine and Reproductive Effects of CaffeineR01DA005484 · NIDA · YALE UNIVERSITY · PI BRACKEN, MICHAEL B · 1987 to 2004
$684k
NIAID NIH HHS AI41040NIAID NIH HHS R01 AI041040NIDA NIH HHS R01 DA005484
6 · The paper itself

Abstract

backgroundIncreasing interest has focused on maternal nutrition and micronutrient status during pregnancy and respiratory disease development in the offspring.

objectiveTo examine the relationship between maternal anemia in pregnancy with wheeze and asthma in early childhood.

methodsThe cohort included children of women followed through pregnancy and recontacted when the child was 6 years of age to evaluate respiratory health. Exposure was assessed using maternal anemia diagnosis and hemoglobin (Hgb) < 11 during delivery hospitalization. Study outcomes include wheezing in early childhood; patterns of wheeze from birth to age 6 (early-onset transient wheeze; late-onset wheeze; early-onset persistent wheeze); and diagnosis of childhood asthma.

resultsMaternal anemia was reported by 11.9% of mothers and was associated with recurrent infant wheeze in the first year (adjusted odds ratio [ORa] = 2.17, 95% confidence interval [CI] 1.18, 4.00), wheezing before age 3 (Ora = 2.42, 95% CI 1.38, 4.23), and early-onset transient and early-onset persistent wheeze patterns (Ora = 2.81, 95%CI 1.38, 5.72, and Ora = 2.07, 95% CI 1.02, 4.22), respectively. Among children of mothers with asthma, maternal anemia was associated with recurrent wheeze in year 1 (Ora = 4.22, 95% CI 1.65, 10.80) and wheeze before age 3 (Ora = 2.73, 95% CI 1.17, 6.35). Offspring of mothers with asthma also had increased odds of asthma diagnosis (Ora = 2.53, 95% CI 1.04, 6.17) and current asthma (Ora = 3.46, 95% CI 1.45, 8.26).

conclusionsMaternal anemia during pregnancy is associated with infant respiratory health outcomes. If this observation is replicated, maternal anemia may be a target for intervention and future research.

Indexed as

Pregnancy Complications, HematologicAnemiaAsthmaChildChild, PreschoolCohort StudiesFemaleHumansInfantMalePregnancyRespiratory Sounds

Identifiers

PMID21277514
PMCPMC3073499
OpenAlexW2034866914

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.