Evidence map›Paper›PMID 22417068›Full record

ArticleInfluenza and other respiratory viruses2012

Pandemic (H1N1) 2009 influenza in Canadian pediatric cancer and hematopoietic stem cell transplant patients.

Dat Tran, Michelle Science, David Dix, Carol Portwine, Shayna Zelcer, Donna L Johnston, Rochelle Yanofsky, Adam Gassas, Marie-Chantal Ethier, Lillian Sung

Open access · bronzeAbstract readMulticenter Study
In one paragraph

Article in Influenza and other respiratory viruses, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 16% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Observational
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 8 institutions in 1 country.

Dat TranDivision of Infectious Diseases, The Hospital for Sick Children, Toronto, ON, Canada.
Michelle Science
David Dix
Carol Portwine
Shayna Zelcer
Donna L Johnston
Rochelle Yanofsky
Adam Gassas
Marie-Chantal Ethier
Lillian Sung
University of Toronto · CABC Children's Hospital · CACancerCare Manitoba · CAChildren's Hospital of Eastern Ontario · CAHamilton Health Sciences · CAHospital for Sick Children · CAInstitute for Clinical Evaluative Sciences · CALondon Health Sciences Centre · CA

Funding

Canadian Institutes of Health Research 87719
6 · The paper itself

Abstract

backgroundThe impact of pandemic H1N1 influenza (pH1N1) virus in pediatric cancer is uncertain. The objectives of this study were to characterize the clinical course of pH1N1 and identify factors associated with severe outcomes.

methodsWe conducted a Canadian multicenter retrospective review of children with cancer and stem cell transplant (SCT) recipients who were diagnosed with laboratory-confirmed pH1N1 infection between May 1, 2009 and January 31, 2010.

resultsWe identified 100 (19 in wave 1 and 81 in wave 2) cases of pH1N1 infection. Median age was 8.7 years. 71% had a hematologic malignancy, and 20% received SCT. Median duration of fever and illness was 2 and 12.5 days, respectively. 51 (51.5%) were hospitalized for a median of 5 days, with no deaths and only 1 requiring admission to the intensive care unit. Radiologically confirmed pneumonia was diagnosed in 10 (10%). Interruption of chemotherapy or conditioning occurred in 43 patients. In multivariable analyses, age <5 years (relative to ≥ 10 years) and neutropenia were associated with hospitalization while neutropenia was associated with pneumonia. Despite oseltamivir use in 89%, viral shedding was prolonged (median, 46 days) and often persisted after symptom resolution. However, an extended treatment course (>5 days) correlated with shortened duration of viral shedding (P=0.041).

conclusionspH1N1 infection in pediatric cancer and SCT patients infrequently caused complications but commonly interrupted cancer treatment. Persistent shedding of virus after illness resolution was common. Further research is needed to verify this finding as it could have implications for treatment guidelines and infection control practices.

Indexed as

Hematopoietic Stem Cell TransplantationAdolescentAntiviral AgentsCanadaChildChild, PreschoolFemaleHospitals, PediatricHumansInfantInfluenza A Virus, H1N1 SubtypeInfluenza, HumanMaleNeoplasmsOseltamivirRetrospective StudiesAntiviral AgentsOseltamivir

Identifiers

PMID22417068
PMCPMC4941707
OpenAlexW1568743896

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.