Evidence map›Paper›PMID 23210456›Full record

ArticleInfluenza and other respiratory viruses2013

Incidence of influenza-associated mortality and hospitalizations in Argentina during 2002-2009.

Eduardo Azziz-Baumgartner, Ana María Cabrera, Po-Yung Cheng, Enio Garcia, Gabriela Kusznierz, Rogelio Calli, Clarisa Baez, María Pía Buyayisqui, Eleonora Poyard, Emanuel Pérez and 10 more

Open access · bronzeAbstract read
In one paragraph

Article in Influenza and other respiratory viruses, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
1.0field-weighted citation impact, top 24% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 23 citations in OpenAlex.

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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

20 authors at 6 institutions in 7 countries.

Eduardo Azziz-BaumgartnerInfluenza Division, U.S. Centers for Disease Control and Prevention, Atlanta, GA, USA. eha9@cdc.gov
Ana María Cabrera
Po-Yung Cheng
Enio Garcia
Gabriela Kusznierz
Rogelio Calli
Clarisa Baez
María Pía Buyayisqui
Eleonora Poyard
Emanuel Pérez
Ricardo Basurto-Davila
Rakhee Palekar
Otavio Oliva
Airlane Pereira Alencar
Regilo de Souza
Thais dos Santos
David K Shay
Marc-Alain Widdowson
Joseph Breese
Horacio Echenique
Centers for Disease Control and Prevention · USMinisterio de Salud · ARPan American Health Organization (Cuba) · CUInstituto Nacional de Enfermedades Respiratorias · MXMinisterio de Salud - Provincia de Buenos Aires · ARUniversidade de São Paulo · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe estimated rates of influenza-associated deaths and hospitalizations in Argentina, a country that recommends annual influenza vaccination for persons at high risk of complications from influenza illness.

methodsWe identified hospitalized persons and deaths in persons diagnosed with pneumonia and influenza (P&I, ICD-10 codes J10-J18) and respiratory and circulatory illness (R&C, codes I00-I99 and J00-J99). We defined the influenza season as the months when the proportion of samples that tested positive for influenza exceeded the annual median. We used hospitalizations and deaths during the influenza off-season to estimate, using linear regression, the number of excess deaths that occurred during the influenza season. To explore whether excess mortality varied by sex and whether people were age <65 or ≥ 65 years, we used Poisson regression of the influenza-associated rates.

resultsDuring 2002-2009, 2411 P&I and 8527 R&C mean excess deaths occurred annually from May to October. If all of these excess deaths were associated with influenza, the influenza-associated mortality rate was 6/100,000 person-years (95% CI 4-8/100,000 person-years for P&I and 21/100,000 person-years (95% CI 12-31/100,000 person-years) for R&C. During 2005-2008, we identified an average of 7868 P&I excess hospitalizations and 22,994 R&C hospitalizations per year, resulting in an influenza-associated hospitalization rate of 2/10,000 person-years (95% CI 1-3/10,000 person-years) for P&I and 6/10,000 person-years (95% CI 3-8/10,000 person-years) for R&C.

conclusionOur findings suggest that annual rates of influenza-associated hospitalizations and death in Argentina were substantial and similar to neighboring Brazil.

Indexed as

AgedAged, 80 and overArgentinaFemaleHospitalizationHumansIncidenceInfluenza, HumanMaleArgentinahospitalizationsincidenceinfluenzamortalityrespiratory

Identifiers

PMID23210456
PMCPMC5855154
OpenAlexW1535430827

What OpenQuestion holds

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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.