Evidence map›Paper›PMID 28667446›Full record

SynthesisEuropean journal of epidemiology2017

Diagnostic performance of flexible sigmoidoscopy combined with fecal immunochemical test in colorectal cancer screening: meta-analysis and modeling.

Tobias Niedermaier, Korbinian Weigl, Michael Hoffmeister, Hermann Brenner

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in European journal of epidemiology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 12% 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, 2 syntheses or guidelines pooled it, 51 citations in OpenAlex.

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  10. Reduction in colorectal cancer incidence by screening endoscopy.Nature reviews. Gastroenterology & hepatology · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Tobias NiedermaierDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.ORCID 0000-0001-7990-3437
Korbinian WeiglDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.
Michael HoffmeisterDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany.
Hermann BrennerDivision of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 581, 69120, Heidelberg, Germany. h.brenner@dkfz.de.
German Cancer Research Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Once-only flexible sigmoidoscopy (FS), which reliably detects neoplasms in the distal colon and rectum but not in the proximal colon, has been shown to reduce incidence and mortality of distal colorectal cancer (CRC). Fecal immunochemical tests (FITs) detect the majority of CRCs and some proportion of adenomas also in the proximal colon. We assessed the expected diagnostic performance of combined application of FS and FIT. We systematically reviewed screening studies conducted in an average risk population that reported specificities and site-specific sensitivities of FITs for detection of CRC or advanced adenoma (AA). Only studies that conducted colonoscopy in all subjects were included. PubMed and Web of Science were searched until May 13, 2016. Reference lists of eligible studies were also screened. Sensitivity of FS was derived from colonoscopy results, assuming the same sensitivity as colonoscopy for left-sided neoplasms and follow-up colonoscopy after detection of distal adenomas. Bivariate meta-analyses were used to derive summary estimates of overall sensitivity and specificity of individual and joint application of both tests. Ten eligible studies were identified. Summary estimates (95% confidence intervals) of overall sensitivity for detecting CRC and AA were 65% (56-74%) and 27% (23-31%) for FIT alone, 67% (58-75%) and 67% (59-75%) for FS alone, and 89% (83-92%) and 75% (68-80%), respectively, for the combination of both tests. The pooled specificity (95% CI) of FIT was 92% (90-95%). Adding a FIT to a once-only screening FS would substantially increase sensitivity of CRC screening at a modest loss in specificity.

Indexed as

Occult BloodSigmoidoscopyColonColorectal NeoplasmsEarly Detection of CancerFecesHumansImmunochemistryMass ScreeningMiddle AgedPredictive Value of TestsSensitivity and SpecificityFecal immunochemical testFlexible sigmoidoscopyLocationMeta-analysis, modelingSite-specific sensitivity

Identifiers

PMID28667446
OpenAlexW2726909729

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.