Evidence map›Paper›PMID 24034489›Full record

SynthesisInfluenza and other respiratory viruses2013

Antivirals for influenza: a summary of a systematic review and meta-analysis of observational studies.

Nancy Santesso, Jonathan Hsu, Reem Mustafa, Jan Brozek, Yao Long Chen, Jessica P Hopkins, Adrienne Cheung, Gayane Hovhannisyan, Liudmila Ivanova, Signe A Flottorp and 8 more

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis 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 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
2.6field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Pooled it
  2. Amantadine and rimantadine for influenza A in children and the elderly.The Cochrane database of systematic reviews · 2014
    Pooled it
  3. Article
  4. AMMI Canada 2023 update on influenza: Management and emerging issues.Journal of the Association of Medical Microbiology and Infectious Disease Canada = Journal officiel de l'Association pour la microbiologie medicale et l'infectiologie Canada · 2023
    Article
  5. Article
  6. Article
  7. The GP's role in promoting winter wellness.The British journal of general practice : the journal of the Royal College of General Practitioners · 2017
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. 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

18 authors at 7 institutions in 5 countries.

Nancy SantessoDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Jonathan HsuDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Reem MustafaDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Jan BrozekDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Yao Long ChenEvidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Gansu, China.
Jessica P HopkinsDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Adrienne CheungDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Gayane HovhannisyanDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Liudmila IvanovaDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Signe A FlottorpNorwegian Knowledge Centre for the Health Services, Oslo, Norway.
Ingvil SaeterdalNorwegian Knowledge Centre for the Health Services, Oslo, Norway.
Arthur D WongMichael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada.
Jinhui TianEvidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Gansu, China.
Timothy M UyekiInfluenza Division, Centers for Disease Control and Prevention, Atlanta, GA, USA.
Elie A AklDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
Pablo Alonso-CoelloIberoamerican Cochrane Centre, CIBERESP-IIB Sant Pau, Barcelona, Spain.
Fiona SmaillDepartment of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada.
Holger J SchünemannDepartment of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
McMaster University · CALanzhou University · CNNasjonalt Kunnskapssenter for Helsetjenesten · NOCenters for Disease Control and Prevention · USIberoamerican Cochrane Centre · ESRegional Municipality of Niagara · CAUniversity at Buffalo, State University of New York · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the use of antivirals to treat patients with severe influenza, questions remain with respect to effects and safety. Although a recent systematic review has provided some indication of benefit, the analysis is limited by the quality of the available evidence from randomized controlled trials. To supplement the existing information, the authors conducted a systematic review of observational studies of antiviral treatment for influenza. This report summarises the findings of that review. Similar to the randomised trials, the confidence in the estimates of the effects for decision-making is low to very low primarily due to the risk of selection and publication bias in the observational studies. From these observational studies, the summary estimates suggest that oseltamivir may reduce mortality, hospitalisation and duration of symptoms compared with no treatment. Inhaled zanamivir may also reduce symptom duration and hospitalisations, but patients may experience more complications compared with no treatment. Earlier treatment with antivirals is generally associated with better outcomes than later treatment. Further high-quality evidence is needed to inform treatment guidelines because of the overall low to very low quality of evidence.

Indexed as

Antiviral AgentsDrug-Related Side Effects and Adverse ReactionsHumansInfluenza, HumanOseltamivirSurvival AnalysisTreatment OutcomeZanamivirAntiviral AgentsOseltamivirZanamivirantiviralinfluenzaM2 ion channel blockerneuraminidase inhibitorobservational study

Identifiers

PMID24034489
PMCPMC5909397
OpenAlexW2107485527

What OpenQuestion holds

Textmetadata
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.