Evidence map›Paper›PMID 24828687›Full record

ArticleInfluenza and other respiratory viruses2014

Effectiveness of seasonal influenza vaccinations against laboratory-confirmed influenza-associated infections among Singapore military personnel in 2010-2013.

Hin Peow Ho, Xiahong Zhao, Junxiong Pang, Mark I-C Chen, Vernon J M Lee, Li Wei Ang, Raymond V Tzer Pin Lin, Christine Q Gao, Li Yang Hsu, Alex R Cook

Open access · goldAbstract read
In one paragraph

Article in Influenza and other respiratory viruses, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 3 pooled it
1.1field-weighted citation impact, top 23% 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

11 citing papers in PubMed, 3 syntheses or guidelines pooled it, 15 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

10 authors at 3 institutions in 1 country.

Hin Peow HoBiodefence Centre, Ministry of Defence, Singapore.
Xiahong Zhao
Junxiong Pang
Mark I-C Chen
Vernon J M Lee
Li Wei Ang
Raymond V Tzer Pin Lin
Christine Q Gao
Li Yang Hsu
Alex R Cook
National University of Singapore · SGMinistry of Defence · SGMinistry of Health · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLimited information is available about seasonal influenza vaccine effectiveness (VE) in tropical communities.

objectivesVirus subtype-specific VE was determined for all military service personnel in the recruit camp and three other non-recruit camp in Singapore's Armed Forces from 1 June 2009 to 30 June 2012.

methodsConsenting servicemen underwent nasal washes, which were tested with RT-PCR and subtyped. The test positive case and test negative control design was used to estimate the VE. To estimate the overall effect of the programme on new recruits, we used an ecological time series approach.

resultsA total of 7016 consultations were collected. The crude estimates for the VE of the triavalent vaccine against both influenza A(H1N1)pdm09 and influenza B were 84% (95% CI 78-88%, 79-86%, respectively). Vaccine efficacy against influenza A(H3N2) was markedly lower (VE 33%, 95% CI -4% to 57%). An estimated 70% (RR = 0.30; 95% CI 0.11-0.84), 39% (RR = 0.61;0.25-1.43) and 75% (RR = 0.25; 95% CI 0.11-0.50) reduction in the risk of influenza A(H1N1)pdm09, influenza A(H3N2) and influenza B infections, respectively, in the recruit camp during the post-vaccination period compared with during the pre-vaccination period was observed.

conclusionsOverall, the blanket influenza vaccine programme in Singapore's Armed Forces has had a moderate to high degree of protection against influenza A(H1N1)pdm09 and influenza B, but not against influenza A(H3N2). Blanket influenza vaccination is recommended for all military personnel.

Indexed as

AdolescentAdultFemaleHumansInfluenza A virusInfluenza B virusInfluenza, HumanInfluenza VaccinesMaleMiddle AgedMilitary PersonnelSeasonsSingaporeYoung AdultInfluenza Vaccinesinfluenza A(H1N1)pdm09influenza A(H3N2)influenza Binfluenza vaccinationvaccine effectiveness

Identifiers

PMID24828687
PMCPMC4181820
OpenAlexW2007047363

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.