Evidence map›Paper›PMID 26739713›Full record

ArticleJournal of clinical immunology2016

Risk of Infections Among 2100 Individuals with IgA Deficiency: a Nationwide Cohort Study.

Jonas F Ludvigsson, Martin Neovius, Lennart Hammarström

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Journal of clinical immunology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 45 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Selective IgA deficiency and COVID-19.The journal of allergy and clinical immunology. In practice · 2023
    Article
  7. Review
  8. Selective IgA Deficiency May Be an Underrecognized Risk Factor for Severe COVID-19.The journal of allergy and clinical immunology. In practice · 2023
    Article
  9. Review
  10. Review
  11. Innate Mechanisms in Selective IgA Deficiency.Frontiers in immunology · 2021
    Review
  12. Article
  13. Review
  14. Human IgA binds a diverse array of commensal bacteria.The Journal of experimental medicine · 2020
    Article
  15. Article
  16. Review
  17. Article
  18. Review
  19. Article
  20. The broad spectrum of lung diseases in primary antibody deficiencies.European respiratory review : an official journal of the European Respiratory Society · 2018
    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

3 authors at 1 institution in 1 country.

Jonas F LudvigssonDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden. jonasludvigsson@yahoo.com.
Martin NeoviusClinical Epidemiology Unit, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.
Lennart HammarströmDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo explore the risk of infections in individuals with IgA deficiency compared to general population controls.

methodsIn this nationwide prospective population-based cohort study, we used data on IgA levels (<0.07 g/L) from six university hospitals in Sweden to identify 2100 individuals with IgA deficiency. Individuals were diagnosed between 1980 and 2010. For each patient with IgA deficiency we identified 10 controls from the general population, matched on age, sex, and place of residence (n = 18,653). Data on infections were obtained from the Swedish National Patient Register (including inpatient and hospital-based outpatient care) between 2001 and 2010. We defined infections as having a record of a relevant international classification of disease (ICD) code. Prevalences and prevalence ratios (PRs) were calculated.

resultsIndividuals with IgA deficiency were more likely to have a record of any infection (36.1 vs. 18.8% in controls) corresponding to a PR of 2.4 (95%CI 2.2-2.6). We also noted statistically significant associations with IgA deficiency (all P-values <0.05) and respiratory tract infections (17.8 vs. 6.3% in controls; PR = 3.2), gastrointestinal infections (6.0 vs. 1.8% in controls; PR = 3.5), skin infections (4.1 vs. 2.2% in controls; PR = 1.9), joint infections (0.48 vs. 0.24% in controls; PR = 2.0; P = 0.052), sepsis (1.5 vs. 0.45% in controls; PR = 3.4), meningitis (0.38 vs. 0.12%, PR = 3.2), mastoiditis/otitis (2.1 vs. 1.1% in controls; PR = 2.0), and urinary tract infections (6.1 vs. 3.4% in controls; PR = 1.8).

conclusionsIndividuals with IgA deficiency are at an increased risk of infections requiring hospital care.

Indexed as

Population SurveillanceAdolescentAdultAgedCase-Control StudiesChildCohort StudiesComorbidityFemaleHumansIgA DeficiencyInfectionsMaleMiddle AgedOutcome Assessment, Health CarePrevalenceIgA deficiencyImmunoglobulinInfections

Identifiers

PMID26739713
OpenAlexW2222172582

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.