Evidence map›Paper›PMID 29934759›Full record

ArticleDiabetologia2018

Pandemic influenza and subsequent risk of type 1 diabetes: a nationwide cohort study.

Paz L D Ruiz, German Tapia, Inger J Bakken, Siri E Håberg, Olav Hungnes, Hanne L Gulseth, Lars C Stene

Open access · hybridAbstract read
In one paragraph

Article in Diabetologia, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 pooled it
3.8field-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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it, 59 citations in OpenAlex.

  1. Pooled it
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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

7 authors at 2 institutions in 1 country.

Paz L D RuizDepartment of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Postbox 4404, Nydalen, 0403, Oslo, Norway. Paz.Lopez-Doriga.Ruiz@fhi.no.ORCID 0000-0002-3404-2060
German TapiaDepartment of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Postbox 4404, Nydalen, 0403, Oslo, Norway.
Inger J BakkenCentre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway.
Siri E HåbergCentre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway.
Olav HungnesDepartment of Influenza, Norwegian Institute of Public Health, Oslo, Norway.
Hanne L GulsethDepartment of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Postbox 4404, Nydalen, 0403, Oslo, Norway.
Lars C SteneDepartment of Chronic Diseases and Ageing, Norwegian Institute of Public Health, Postbox 4404, Nydalen, 0403, Oslo, Norway.
Norwegian Institute of Public Health · NOOslo University Hospital · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisCase reports have linked influenza infections to the development of type 1 diabetes. We investigated whether pandemic and seasonal influenza infections were associated with subsequent increased risk of type 1 diabetes.

methodsIn this population-based registry study, we linked individual-level data from national health registries for the entire Norwegian population under the age of 30 years for the years 2006-2014 (2.5 million individuals). Data were obtained from the National Registry (population data), the Norwegian Patient Registry (data on inpatient and outpatient specialist care), the Primary Care Database, the Norwegian Prescription Database and the Norwegian Surveillance System for Communicable Diseases. Pandemic influenza was defined as either a clinical influenza diagnosis during the main pandemic period or a laboratory-confirmed test. Seasonal influenza was defined by a clinical diagnosis of influenza between 2006 and 2014. We used Cox regression to estimate HRs for new-onset type 1 diabetes after an influenza infection, adjusted for year of birth, sex, place of birth and education.

resultsThe adjusted HR for type 1 diabetes after pandemic influenza infection was 1.19 (95% CI 0.97, 1.46). In the subgroup with laboratory-confirmed influenza A (H1N1), influenza was associated with a twofold higher risk of subsequent type 1 diabetes before age 30 years (adjusted HR: 2.26, 95% CI 1.51, 3.38). CONCLUSIONS/

interpretationOverall, we could not demonstrate a clear association between clinically reported pandemic influenza infection and incident type 1 diabetes. However, we found a twofold excess of incident diabetes in the subgroup with laboratory-confirmed pandemic influenza A (H1N1).

Indexed as

AdolescentAdultDiabetes Mellitus, Type 1FemaleHumansIncidenceInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleRegistriesYoung AdultIncidenceInfectionsInfluenzaInfluenza H1N1Register-based studyType 1 diabetes

Identifiers

PMID29934759
PMCPMC6096634
OpenAlexW2809587920

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.