Evidence map›Paper›PMID 19577282›Full record

ArticleThe Journal of allergy and clinical immunology2009

Major increase in allergic sensitization in schoolchildren from 1996 to 2006 in northern Sweden.

Eva Rönmark, Anders Bjerg, Matthew Perzanowski, Thomas Platts-Mills, Bo Lundbäck

Abstract readValidation Study
In one paragraph

Article in The Journal of allergy and clinical immunology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

73 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  6. Review
  7. Article
  8. Allergic rhinitis: Incidence and remission from childhood to young adulthood-A prospective study.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2025
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  9. Article
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  15. Sensitization to molecular dog allergens in an adult population: Results from the West Sweden Asthma Study.Clinical and experimental allergy : journal of the British Society for Allergy and Clinical Immunology · 2023
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  16. Article
  17. Article
  18. Article
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  20. Article

13 more citing papers are in PubMed but not listed here.

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

5 authors.

Eva RönmarkObstructive Lung Disease in Northern Sweden Studies, Department of Medicine, Sunderby Central Hospital of Norrbotten, Luleå, Sweden. eva.ronmark@telia.com
Anders Bjerg
Matthew Perzanowski
Thomas Platts-Mills
Bo Lundbäck

Funding

IgE antibodies to the mammalian oligosaccharide galactose-alpha-1, 3-galactose (alpha-gal): immunology, epidemiology and relevance to allergic and inflammatory diseaseR37AI020565 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI THOMAS A. PLATTS-MILLS · 1992 to 2026
$8.4M
DUST MITE, COCKROACH AND CAT ALLERGENS IN HOUSES/ASTHMAR01AI020565 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PLATTS-MILLS, THOMAS A. · 1985 to 2017
$7.1M
Viruses and IgE in relation to mechanisms of asthmaP01AI050989 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI MILLER, NORMA · 2001 to 2005
$4.9M
Risk Factors Accounting for Neighborhood Differences in Asthma PrevalenceR01ES014400 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI PERZANOWSKI, MATTHEW S · 2007 to 2010
$2.9M
RESPIRATORY SYNCYTIAL VIRUS AND ATOPIC PULMONARY RESPONSEU19AI034607 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PLATTS-MILLS, THOMAS A. · 1997 to 2000
$820k
RESPIRATORY SYNCITIAL VIRUS AND ATOPIC PULMONARY RESPONSEU01AI034607 · NIAID · UNIVERSITY OF VIRGINIA CHARLOTTESVILLE · PI PLATTS-MILLS, THOMAS A · 1993 to 1996
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NIAID NIH HHS AI-20565NIAID NIH HHS AI-34607NIAID NIH HHS P01 AI050989NIAID NIH HHS R01 AI020565NIAID NIH HHS R37 AI020565NIEHS NIH HHS R01 ES014400
6 · The paper itself

Abstract

backgroundTime trends for allergic sensitization are poorly known.

objectiveTo compare the trends in prevalence of allergic sensitization and associated risk factors in children.

methodsTwo cohorts of children (age 7-8 years) were invited for skin prick tests (SPTs) 10 years apart, 1996 and 2006. The participation rates were 2148 (88%) and 1700 (90%), respectively. The methods were identical, and 10 common airborne allergens were used. An expanded International Study of Allergy and Asthma in Children questionnaire about symptoms and possible risk factors for allergic conditions was completed by the parents.

resultsThe prevalence of any positive SPT increased from 21% in 1996 to 30% in 2006 (P < .001). The pattern of sensitization remained similar, and sensitization to cat was most common both years, 13% and 19%, respectively. Sensitization to mites and mold was uncommon in both surveys. A family history of allergy was a significant risk factor for a positive SPT both years (odds ratio, 1.7). Factors that in 1996 had a protective effect, such as rural living and having several siblings, had lost this effect in 2006. The prevalence of most risk factors remained similar, but respiratory infections and smoking among parents decreased significantly. During the same period, there was no significant increase in the prevalence of current wheeze (11.9% to 12.4%, P = .636) or symptoms of rhinitis or eczema.

conclusionThe prevalence of allergic sensitization increased significantly from 1996 to 2006, whereas no increase in clinical symptoms was found. The parallel decrease in parental smoking and respiratory infections indicate a different influence of environmental factors on allergic sensitization and clinical symptoms, respectively.

Indexed as

AllergensChildCohort StudiesFemaleHumansHypersensitivityLogistic ModelsMalePrevalenceRisk FactorsSkin TestsSurveys and QuestionnairesSwedenAllergens

Identifiers

PMID19577282
PMCPMC2747664

What OpenQuestion holds

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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.