Evidence map›Paper›PMID 27266863›Full record

Observational studyThe British journal of general practice : the journal of the Royal College of General Practitioners2016

Faecal calprotectin in patients with suspected colorectal cancer: a diagnostic accuracy study.

James Turvill, Assad Aghahoseini, Nala Sivarajasingham, Kazim Abbas, Murtaza Choudhry, Kostantinos Polyzois, Kostantinos Lasithiotakis, Dimitra Volanaki, Baek Kim, Fiona Langlands and 5 more

Open access · bronzeAbstract readObservational Study
In one paragraph

Observational study in The British journal of general practice : the journal of the Royal College of General Practitioners, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 4 pooled it
5.7field-weighted citation impact, top 4% 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

22 citing papers in PubMed, 4 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Diagnostic accuracy of fecal calprotectin for screening patients with colorectal cancer: A meta-analysis.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2018
    Pooled it
  5. Observational
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. Future of Colorectal Cancer Screening: From One-Size-FITs-All to Tailor-Made.Frontiers in gastroenterology (Lausanne, Switzerland) · 2022
    Review
  13. The Fast Track FIT study: diagnostic accuracy of faecal immunochemical test for haemoglobin in patients with suspected colorectal cancer.The British journal of general practice : the journal of the Royal College of General Practitioners · 2021
    Article
  14. Diagnostic accuracy of fecal calprotectin in predicting significant gastrointestinal diseases.JGH open : an open access journal of gastroenterology and hepatology · 2021
    Article
  15. Article
  16. Article
  17. Article
  18. Article
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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

15 authors at 1 institution in 1 country.

James TurvillDepartment of Gastroenterology;
Assad AghahoseiniDepartment of Surgery;
Nala SivarajasinghamDepartment of Surgery;
Kazim AbbasDepartment of Surgery;
Murtaza ChoudhryDepartment of Surgery;
Kostantinos PolyzoisDepartment of Surgery;
Kostantinos LasithiotakisDepartment of Surgery;
Dimitra VolanakiDepartment of Surgery;
Baek KimDepartment of Surgery;
Fiona LanglandsDepartment of Surgery;
Helen AndrewDepartment of Surgery;
Jesper RoosDepartment of Surgery;
Samantha MellenDepartment of Clinical Biochemistry, York Teaching Hospital NHS Foundation Trust, York.
Daniel TurnockDepartment of Clinical Biochemistry, York Teaching Hospital NHS Foundation Trust, York.
Alison JonesDepartment of Clinical Biochemistry, York Teaching Hospital NHS Foundation Trust, York.
York Teaching Hospital NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNICE guidance exists for the use of faecal calprotectin (FC) when irritable bowel syndrome or inflammatory bowel disease are suspected. Often, however, colorectal cancer is considered within the differential. Should FC have a high diagnostic accuracy for colorectal cancer, it may be applicable as a primary care screening test for all patients with lower gastrointestinal symptoms.

aimTo determine the negative and positive predictive value (NPV/PPV) of FC in patients referred from primary care with suspected colorectal cancer. DESIGN AND

settingA diagnostic accuracy study conducted at a single secondary care site

methodConsenting patients referred with suspected colorectal cancer within the '2-week wait' pathway provided a stool sample for FC prior to investigation. FC levels were reconciled with end diagnoses: cancer, adenomatous polyps ≥10 mm, and all enteric organic disease.

resultsA total of 654 patients completed the evaluation; median age 69 years, female 56%. The NPV for colorectal cancer was 98.6% and 97.2% when including polyps ≥10 mm. The PPV for all organic enteric disease was 32.7%. The diagnostic yield for cancer based on clinical suspicion was 6.3%. By altering the FC cut-off to fix the NPV at 97.0%, the PPV for cancer increased from 8.7% to 13.3%.

conclusionFC has a high NPV for colorectal cancer and significant polyps in patients with suspected cancer. In total, 27.8% of patients had a normal FC and could safely have been spared a '2-week wait' referral. The addition of FC testing into the current symptom-based assessment has the potential to increase colorectal cancer detection rate yet be clinically and cost effective.

Indexed as

AgedBiomarkersColorectal NeoplasmsFecesFemaleHumansInflammatory Bowel DiseasesLeukocyte L1 Antigen ComplexMaleOccult BloodPredictive Value of TestsPrimary Health CareReferral and ConsultationReproducibility of ResultsSensitivity and SpecificityUnited KingdomBiomarkersLeukocyte L1 Antigen Complexcalprotectincolorectal cancerdiagnostic accuracyprimary care

Identifiers

PMID27266863
PMCPMC4917053
OpenAlexW2413861300

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.