Evidence map›Paper›PMID 31829141›Full record

Observational studyBMC gastroenterology2019

Appraisal of the faecal haemoglobin, age and sex test (FAST) score in assessment of patients with lower bowel symptoms: an observational study.

Jayne Digby, Judith A Strachan, Craig Mowat, Robert J C Steele, Callum G Fraser

Abstract readObservational Study
In one paragraph

Observational study in BMC gastroenterology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Observational
  6. Observational
  7. Article
  8. Article
  9. Review
  10. Article
  11. The state of the faecal immunochemical test in symptomatic patients in the UK.Annals of the Royal College of Surgeons of England · 2022
    Article
  12. Article
  13. Observational
  14. Article
  15. Article
  16. Article
  17. Observational
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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.

Jayne DigbyCentre for Research into Cancer Prevention and Screening, University of Dundee, Dundee, Scotland, UK.
Judith A StrachanBlood Sciences and Scottish Bowel Screening Laboratory, Ninewells Hospital and Medical School, Dundee, Scotland, UK.
Craig MowatDepartment of Gastroenterology, Ninewells Hospital and Medical School, Dundee, Scotland, UK.
Robert J C SteeleCentre for Research into Cancer Prevention and Screening, University of Dundee, Dundee, Scotland, UK.
Callum G FraserCentre for Research into Cancer Prevention and Screening, University of Dundee, Ninewells Hospital and Medical School, Dundee, Scotland, DD1 9SY, UK. callum.fraser@nhs.net.ORCID http://orcid.org/0000-0002-1333-7994

Funding

Chief Scientist Office ASM/14/04Chief Scientist Office ASM/14/4
6 · The paper itself

Abstract

backgroundMany patients present in primary care with lower bowel symptoms, but significant bowel disease (SBD), comprising colorectal cancer (CRC), advanced adenoma (AA), or inflammatory bowel disease (IBD), is uncommon. Quantitative faecal immunochemical tests for haemoglobin (FIT), which examine faecal haemoglobin concentrations (f-Hb), assist in deciding who would benefit from colonoscopy. Incorporation of additional variables in an individual risk-score might improve this approach. We investigated if the published f-Hb, age and sex test score (FAST score) added value.

methodsData from the first year of routine use of FIT in primary care in one NHS Board in Scotland were examined: f-Hb was estimated using one HM-JACKarc FIT system (Kyowa Medex Co., Ltd., Tokyo, Japan) with a cut-off for positivity ≥10 μg Hb/g faeces. 5660 specimens were received for analysis in the first year. 4072 patients were referred to secondary care: 2881 (70.6%) of these had returned a FIT specimen. Of those referred, 1447 had colonoscopy data as well as the f-Hb result (group A): 2521 patients, also with f-Hb, were not immediately referred (group B). The FAST score was assessed in both groups.

results1196 (41.7%) of patients who returned a specimen for FIT analysis had f-Hb ≥10 μg Hb/g faeces. In group A, 252 of 296 (85.1%) with SBD had f-Hb > 10 μg Hb/g faeces, as did 528 of 1151 (45.8%) without SBD. Using a FAST score > 2.12, which gives high clinical sensitivity for CRC, only 1143 would have been referred for colonoscopy (21.0% reduction in demand): 286 of 296 (96.6%) with SBD had a positive FAST score, as did 857 of 1151 (74.5%) without SBD. However, one CRC, five AA and four IBD would have been missed. In group B, although 95.2% had f-Hb < 10 μg Hb/g faeces, 1371 (53.7%) had FAST score ≥ 2.12: clinical rationale led to only 122 of group B completing subsequent bowel investigations: a FAST score > 2.12 was found in 13 of 15 (86.7%) with SBD.

conclusionsThe performance characteristics of the FAST score did not seem to enhance the utility of f-Hb alone. Locally-derived formulae might confer desired benefits.

Indexed as

Age FactorsOccult BloodSex FactorsAdenomaBiomarkersColonic NeoplasmsColonoscopyFemaleHemoglobinsHumansInflammatory Bowel DiseasesIntestinal DiseasesMalePredictive Value of TestsRectal NeoplasmsSensitivity and SpecificityBiomarkersHemoglobinsAdenomaBowel diseaseColorectal cancerFaecal biomarkersFaecal haemoglobinFaecal immunochemical testFAST scoreInflammatory bowel disease

Identifiers

PMID31829141
PMCPMC6907179

What OpenQuestion holds

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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.