Evidence map›Paper›PMID 33289900›Full record

SynthesisEuropean journal of epidemiology2020

Assessing the age specificity of infection fatality rates for COVID-19: systematic review, meta-analysis, and public policy implications.

Andrew T Levin, William P Hanage, Nana Owusu-Boaitey, Kensington B Cochran, Seamus P Walsh, Gideon Meyerowitz-Katz

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in European journal of epidemiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 482 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
482citing papers in PubMed, 6 pooled it
26.1field-weighted citation impact, top 1% 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

482 citing papers in PubMed, 6 syntheses or guidelines pooled it, 890 citations in OpenAlex.

  1. Pooled it
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  3. Dynamics of SARS-CoV-2 seroassay sensitivity: a systematic review and modelling study.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2023
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  6. Recent Advance Analysis of Recovery in Hospitalized People with COVID-19: A Systematic Review.International journal of environmental research and public health · 2022
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422 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

6 authors at 4 institutions in 3 countries.

Andrew T LevinDartmouth College, Hanover, USA.
William P HanageHarvard T.H. Chan School of Public Health, Boston, USA.
Nana Owusu-BoaiteyCase Western Reserve University School of Medicine, Cleveland, USA.
Kensington B CochranDartmouth College, Hanover, USA.
Seamus P WalshDartmouth College, Hanover, USA.
Gideon Meyerowitz-KatzUniversity of Wollongong, Wollongong, Australia. gideon.meyerowitzkatz@health.nsw.gov.au.ORCID http://orcid.org/0000-0002-1156-9345
Dartmouth College · USHarvard University · USUniversity of Wollongong · AUUniversity School · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Determine age-specific infection fatality rates for COVID-19 to inform public health policies and communications that help protect vulnerable age groups. Studies of COVID-19 prevalence were collected by conducting an online search of published articles, preprints, and government reports that were publicly disseminated prior to 18 September 2020. The systematic review encompassed 113 studies, of which 27 studies (covering 34 geographical locations) satisfied the inclusion criteria and were included in the meta-analysis. Age-specific IFRs were computed using the prevalence data in conjunction with reported fatalities 4 weeks after the midpoint date of the study, reflecting typical lags in fatalities and reporting. Meta-regression procedures in Stata were used to analyze the infection fatality rate (IFR) by age. Our analysis finds a exponential relationship between age and IFR for COVID-19. The estimated age-specific IFR is very low for children and younger adults (e.g., 0.002% at age 10 and 0.01% at age 25) but increases progressively to 0.4% at age 55, 1.4% at age 65, 4.6% at age 75, and 15% at age 85. Moreover, our results indicate that about 90% of the variation in population IFR across geographical locations reflects differences in the age composition of the population and the extent to which relatively vulnerable age groups were exposed to the virus. These results indicate that COVID-19 is hazardous not only for the elderly but also for middle-aged adults, for whom the infection fatality rate is two orders of magnitude greater than the annualized risk of a fatal automobile accident and far more dangerous than seasonal influenza. Moreover, the overall IFR for COVID-19 should not be viewed as a fixed parameter but as intrinsically linked to the age-specific pattern of infections. Consequently, public health measures to mitigate infections in older adults could substantially decrease total deaths.

Indexed as

Public PolicySARS-CoV-2AdultAgedAged, 80 and overCause of DeathCOVID-19FemaleHumansMaleMiddle AgedModels, StatisticalMortalityPandemicsPredictive Value of TestsSeverity of Illness IndexCOVID-19Infection-fatality rateInfection-fatality ratioMeta-regressionSARS-CoV-2Systematic review

Identifiers

PMID33289900
PMCPMC7721859
OpenAlexW3111021405

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.