Evidence map›Paper›PMID 27537389›Full record

ArticleBritish journal of cancer2016

Do colorectal cancer patients diagnosed as an emergency differ from non-emergency patients in their consultation patterns and symptoms? A longitudinal data-linkage study in England.

C Renzi, G Lyratzopoulos, T Card, T P C Chu, U Macleod, B Rachet

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 3 pooled it
6.1field-weighted citation impact, top 2% 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

61 citing papers in PubMed, 3 syntheses or guidelines pooled it, 98 citations in OpenAlex.

  1. Diagnostic windows in non-neoplastic diseases: a systematic review.The British journal of general practice : the journal of the Royal College of General Practitioners · 2023
    Pooled it
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  7. Prediagnostic prescription patterns in pancreatic cancer: a retrospective primary care cohort study.The British journal of general practice : the journal of the Royal College of General Practitioners · 2026
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  10. Prediagnostic primary care consultations and imaging in emergency-diagnosed versus referred patients with lung cancer: a population-based linked data study.The British journal of general practice : the journal of the Royal College of General Practitioners · 2026
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  17. Emergency department use before cancer diagnosis in Ontario, Canada: a population-based study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2024
    Article
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  19. Article
  20. Article

1 more citing papers are in PubMed but not listed here.

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 at 4 institutions in 1 country.

C RenziHealth Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, WC1E 6BT London, UK.
G LyratzopoulosHealth Behaviour Research Centre, Department of Epidemiology and Public Health, University College London, WC1E 6BT London, UK.
T CardDivision of Epidemiology and Public Health, University of Nottingham, NG5 1PB Nottingham, UK.
T P C ChuDivision of Child Health, Obstetrics and Gynaecology, University of Nottingham, NG7 2UH Nottingham, UK.
U MacleodHull York Medical School, University of Hull, HU6 7RX Kingston upon Hull, UK.
B RachetCancer Survival Group, Department of Non-communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, WC1E 7HT London, UK.
University College London · GBUniversity of Nottingham · GBHull York Medical School · GBLondon School of Hygiene & Tropical Medicine · GB

Funding

Cancer Research UK 11700Cancer Research UK 18180Cancer Research UK 18525Cancer Research UK 18667Cancer Research UK A18180Cancer Research UK C48748/A18667
6 · The paper itself

Abstract

backgroundMore than 20% of colorectal cancers are diagnosed following an emergency presentation. We aimed to examine pre-diagnostic primary-care consultations and related symptoms comparing patients diagnosed as emergencies with those diagnosed through non-emergency routes.

methodsCohort study of colorectal cancers diagnosed in England 2005 and 2006 using cancer registration data individually linked to primary-care data (CPRD/GPRD), allowing a detailed analysis of clinical information referring to the 5-year pre-diagnostic period.

resultsEmergency diagnosis occurred in 35% and 15% of the 1029 colon and 577 rectal cancers. 'Background' primary-care consultations (2-5 years before diagnosis) were similar for either group. In the year before diagnosis, >95% of emergency and non-emergency presenters had consulted their doctor, but emergency presenters had less frequently relevant symptoms (colon cancer: 48% vs 71% (P<0.001); rectal cancer: 49% vs 61% (P=0.043)). 'Alarm' symptoms were recorded less frequently in emergency presenters (e.g., rectal bleeding: 9 vs 24% (P=0.002)). However, about 1/5 of emergency presenters (18 and 23% for colon and rectal cancers) had 'alarm' symptoms the year before diagnosis.

conclusionsEmergency presenters have similar 'background' consultation history as non-emergency presenters. Their tumours seem associated with less typical symptoms, however opportunities for earlier diagnosis might be present in a fifth of them.

Indexed as

Early Detection of CancerEmergenciesAbdominal PainAdenocarcinomaAgedAnemiaColorectal NeoplasmsDelayed DiagnosisEnglandFemaleGastrointestinal HemorrhageHumansMaleMiddle AgedOrgan SpecificityPrimary Health Care

Identifiers

PMID27537389
PMCPMC5046207
OpenAlexW2512086344

What OpenQuestion holds

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LicenceCC BY
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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.