Evidence map›Paper›PMID 31093360›Full record

ArticleCancers of the head & neck2018

Thyroid cancer risk in airline cockpit and cabin crew: a meta-analysis.

George S Liu, Austin Cook, Michael Richardson, Daniel Vail, F Christopher Holsinger, Ingrid Oakley-Girvan

Abstract read
In one paragraph

Article in Cancers of the head & neck, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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, 1 synthesis or guideline pooled it.

  1. Pooled it
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  6. Article
  7. Radiation-Related Thyroid Cancer.Endocrine reviews · 2024
    Review
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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

6 authors.

George S Liu1Stanford University School of Medicine, Stanford University, 450 Serra Mall, Stanford, CA 94305 USA.ORCID 0000-0002-2066-5734
Austin Cook1Stanford University School of Medicine, Stanford University, 450 Serra Mall, Stanford, CA 94305 USA.
Michael Richardson1Stanford University School of Medicine, Stanford University, 450 Serra Mall, Stanford, CA 94305 USA.
Daniel Vail1Stanford University School of Medicine, Stanford University, 450 Serra Mall, Stanford, CA 94305 USA.
F Christopher Holsinger2Department of Otolaryngology-Head and Neck Surgery, Stanford University, 801 Welch Road, Stanford, CA 94305 USA.
Ingrid Oakley-Girvan3Cancer Prevention Institute of California, Fremont, CA 94538 USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAirline crew are exposed to ionizing radiation as part of their occupation and have a documented increased risk of melanoma and cataracts. However, whether their occupation predisposes them to an increased risk of thyroid cancer is not established. The purpose of this systematic review and meta-analysis was to assess the risk of thyroid cancer in airline cockpit and cabin crew compared with the general population.

methodsThe MEDLINE database accessed via PubMed and Cochrane Database were searched. We included cohort studies reporting the standardized incidence ratio (SIR) or standardized mortality ratio (SMR) of thyroid cancers in any flight-based occupation.

resultsOf the 1777 citations retrieved in PubMed, eight studies with a total of 243,088 aircrew members and over 3,334,114 person-years of follow-up were included in this meta-analysis. No relevant studies were identified on Cochrane Database. The overall summary SIR of participants in any flight-based occupation was 1.11 (95% CI, 0.79-1.57;

conclusionAirline crew were not found to have a significantly elevated risk of thyroid cancer incidence or mortality relative to the general population. Future research should capitalize on the growing occupational cohort dataset and employ innovative methods to quantify lifetime radiation exposure to further assess thyroid cancer risk in airline crew.

Indexed as

AirlineCabin crewIncidenceMeta-analysisPilotRiskThyroid cancer

Identifiers

PMID31093360
PMCPMC6460828

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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.