Evidence map›Paper›PMID 30192906›Full record

ArticleAmerican journal of epidemiology2018

Loose Ends in the Epidemiology of the 1918 Pandemic: Explaining the Extreme Mortality Risk in Young Adults.

Maarten van Wijhe, Mathias Mølbak Ingholt, Viggo Andreasen, Lone Simonsen

Abstract readHistorical Article
In one paragraph

Article in American journal of epidemiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. The 1919-21 influenza pandemic in Greenland.International journal of circumpolar health · 2024
    Article
  4. Article
  5. Article
  6. Defusing COVID-19: Lessons Learned from a Century of Pandemics.Tropical medicine and infectious disease · 2020
    Review
  7. Review
  8. The 1918 Influenza Pandemic: Looking Back, Looking Forward.American journal of epidemiology · 2018
    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

4 authors.

Maarten van WijheDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Mathias Mølbak IngholtDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Viggo AndreasenDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Lone SimonsenDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the century since the 1918 influenza pandemic, insights have been sought to explain the pandemic's signature pattern of high death rates in young adults and low death rates in the elderly and infants. Our understanding of the origin and evolution of the pandemic has shifted considerably. We review evidence of the characteristic age-related pattern of death during the 1918 pandemic relative to the "original antigenic sin" hypothesis. We analyze age-stratified mortality data from Copenhagen around 1918 to identify break points associated with unusual death risk. Whereas infants had no meaningful risk elevation, death risk gradually increased, peaking for young adults 20-34 years of age before dropping sharply for adults ages 35-44 years, suggesting break points for birth cohorts around 1908 and 1878. Taken together with data from previous studies, there is strong evidence that those born before 1878 or after 1908 were not at increased risk of dying of 1918 pandemic influenza. Although the peak death risk coincided with the 1889-1892 pandemic, the 1908 and 1878 break points do not correspond with known pandemics. An increasing number of interdisciplinary studies covering fields such as virology, phylogenetics, death, and serology offer exciting insights into patterns and reasons for the unusual extreme 1918 pandemic mortality risk in young adults.

Indexed as

AdultAge DistributionAnimalsDenmarkHemagglutininsHistory, 20th CenturyHumansInfluenza A Virus, H1N1 SubtypeInfluenza, HumanInfluenza Pandemic, 1918-1919Rural PopulationWorld War IYoung AdultHemagglutinins

Identifiers

PMID30192906
PMCPMC7314280

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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.