Evidence map›Paper›PMID 34913599›Full record

ArticleCancer medicine2022

Impact of Barrett oesophagus diagnoses and endoscopies on oesophageal cancer survival in the UK: A cohort study.

Judith Offman, Francesca Pesola, Rebecca C Fitzgerald, Willie Hamilton, Peter Sasieni

Abstract read
In one paragraph

Article in Cancer medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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

3 citing papers in PubMed.

  1. 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

5 authors.

Judith OffmanComprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK.ORCID 0000-0001-5604-1635
Francesca PesolaComprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK.
Rebecca C FitzgeraldMRC Cancer Unit, Hutchison/MRC Research Centre, University of Cambridge, Cambridge, UK.
Willie HamiltonCollege of Medicine and Health, University of Exeter, Exeter, UK.
Peter SasieniComprehensive Cancer Centre, School of Cancer and Pharmaceutical Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK.

Funding

Cancer Research UK 25356Cancer Research UK 27047Cancer Research UK C8162/A16892Cancer Research UK C8162/A25356Cancer Research UK C8640/A23385
6 · The paper itself

Abstract

backgroundCurrent guidelines recommend endoscopic surveillance for Barrett oesophagus (BE), but the value of surveillance is still debated. Using a combination of primary care, secondary care and cancer registry datasets, we examined the impact of a prior BE diagnosis, clinical and risk factors on survival from oesophageal cancer and adenocarcinoma.

methodsRetrospective cohort study of patients aged 50 and above diagnosed with malignant oesophageal cancer between 1993 and 2014 using Clinical Practice Research Datalink (CPRD). All prior BE diagnoses and endoscopies were identified from CPRD and Hospital Episode Statistics. Histology information was obtained from linked cancer registry data. We used flexible parametric models to estimate excess hazard ratios (EHRs) for relative survival. We simulated the potential impact of lead-time by adding random lead-times from a variety of distributions to all those with prior BE.

resultsAmong our oesophageal cancer (n = 7503) and adenocarcinoma (n = 1476) cohorts only small percentages, 3.4% and 5.3%, respectively, had a prior BE diagnosis. Two-year relative survival was better among patients with BE: 48.0% (95% CI 41.9-54.9) compared to 25.2% (24.3-26.2) without. Patients with BE had a better prognosis (EHR = 0.53, 0.41-0.68). Survival was higher even if patients with BE had fewer than two endoscopies (50.0%; 43.6-57.3). A survival benefit was still observed after lead-time adjustment, with a 20% absolute difference in 2-year survival using a 5 year mean sojourn time.

conclusionsPatients with a prior BE diagnosis had a survival advantage. This was not fully explained by surveillance endoscopies.

Indexed as

AdenocarcinomaBarrett EsophagusEsophageal NeoplasmsCohort StudiesHumansRetrospective StudiesUnited KingdomBarrett oesophaguslead-time biasoesophageal cancerrelative survivalsurveillance

Identifiers

PMID34913599
PMCPMC8855914

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