Evidence map›Paper›PMID 27883281›Full record

ArticleInfluenza and other respiratory viruses2017

Severe mortality impact of the 1957 influenza pandemic in Chile.

Gerardo Chowell, Lone Simonsen, Rodrigo Fuentes, Jose Flores, Mark A Miller, Cécile Viboud

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Article in Influenza and other respiratory viruses, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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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

4 citing papers in PubMed.

  1. Article
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  4. Severe mortality impact of the 1957 influenza pandemic in Chile.Influenza and other respiratory viruses · 2017
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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

6 authors.

Gerardo ChowellGeorgia State University, Atlanta, Georgia, USA.
Lone SimonsenFogarty International Center, National Institutes of Health, Bethesda, MD, USA.
Rodrigo FuentesMinisterio de Salud, Santiago, Chile.
Jose FloresThe University of South Dakota, Vermillion, SD, USA.
Mark A MillerFogarty International Center, National Institutes of Health, Bethesda, MD, USA.
Cécile ViboudFogarty International Center, National Institutes of Health, Bethesda, MD, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionEpidemiological studies of the 1957 influenza pandemic are scarce, particularly from lower-income settings.

methodsWe analyzed the spatial-temporal mortality patterns of the 1957 influenza pandemic in Chile, including detailed age-specific mortality data from a large city, and investigated risk factors for severe mortality impact across regions.

resultsChile exhibited two waves of excess mortality in winter 1957 and 1959 with a cumulative excess mortality rate of 12 per 10 000, and a ~10-fold mortality difference across provinces. High excess mortality rates were associated with high baseline mortality (R

conclusionsThe estimated A/H2N2 mortality burden in Chile is the highest on record for this pandemic-about three to five times as severe as that experienced in wealthier nations. The global impact of this pandemic may be substantially underestimated from previous studies based on high-income countries.

Indexed as

AdolescentAdultAgedAge DistributionChildChild, PreschoolChileFemaleHumansInfluenza A virusInfluenza, HumanMiddle AgedPandemicsSeasonsYoung Adult1957 influenza pandemicbaseline mortality ratesChileexcess mortality rateslatitudereproduction numbertransmissibility

Identifiers

PMID27883281
PMCPMC5410718

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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.