Evidence map›Paper›PMID 25540085›Full record

ReviewDigestive diseases and sciences2015

Screening for colorectal cancer in African Americans: determinants and rationale for an earlier age to commence screening.

John M Carethers

Open access · greenAbstract readReview
In one paragraph

Review in Digestive diseases and sciences, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 85 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
85citing papers in PubMed, 2 pooled it
4.9field-weighted citation impact, top 3% 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

85 citing papers in PubMed, 2 syntheses or guidelines pooled it, 128 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Article
  4. Racial/Ethnic Disparities in Early-Onset Colorectal Cancer Outcomes.Journal of racial and ethnic health disparities · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Review
  18. Improving Noninvasive Colorectal Cancer Screening.The New England journal of medicine · 2024
    Article
  19. Article
  20. THE JEREMIAH METZGER LECTURE: ENVIRONMENTAL INFLUENCES ON COLORECTAL CANCER.Transactions of the American Clinical and Climatological Association · 2024
    Article

25 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

1 author at 1 institution in 1 country.

John M CarethersDivision of Gastroenterology, Department of Internal Medicine, University of Michigan, 3101 Taubman Center, 1500 East Medical Center Drive, Ann Arbor, MI, 48109-5368, USA, jcarethe@umich.edu.
University of Michigan–Ann Arbor · US

Funding

MICROSATELLITE INSTABILITY &DNA MISMATCH REPAIR SYSTEMR01DK067287 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CARETHERS, JOHN M · 2005 to 2015
$3.2M
Inflammatory Differentiation of Colorectal Cancer Among African AmericansU01CA162147 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CARETHERS, JOHN M · 2012 to 2016
$1.4M
NCI NIH HHS CA162147NCI NIH HHS U01 CA162147NIDDK NIH HHS DK067287NIDDK NIH HHS R01 DK067287
6 · The paper itself

Abstract

Colorectal cancer (CRC) screening is a cost-effective approach to reduce morbidity, mortality, and prevalence of CRC in populations. Current recommendations for asymptomatic populations begin screening at age 50 years, after which ~95% of cancers occur. Determinants that modify timing and frequency for screening include: personal/family history of adenomas or CRC, age of onset of lesions, and presence or potential to harbor high-risk conditions like inflammatory bowel disease (IBD), familial adenomatous polyposis (FAP), or Lynch syndrome. Although race, like family history, is heritable, it has not engendered inclusion in systematic screening recommendations despite multiple studies demonstrating disparity in the incidence and mortality from CRC, and the potential for targeted screening to reduce disparity. African Americans, when compared to Caucasians, have lower CRC screening utilization, younger presentation for CRC, higher CRC prevalence at all ages, and higher proportion of CRCs before age 50 years (~11 vs. 5%); are less likely to transmit personal/family history of adenomas or CRC that may change screening age; show excess of high-risk proximal adenomas, matched with 7-15% excess right-sided CRCs that lack microsatellite instability; show higher frequencies of high-risk adenomas for every age decile; and demonstrate genetic biomarkers associated with metastasis. These epidemiological and biological parameters put African Americans at higher risk from CRC irrespective of socioeconomic issues, like IBD, FAP, and Lynch patients. Including race as a factor in national CRC screening guidelines and commencing screening at an age earlier than 50 years seems rational based on the natural history and aggressive behavior in this population.

Indexed as

Black or African AmericanAge FactorsColorectal NeoplasmsHumansMass Screening

Identifiers

PMID25540085
PMCPMC4369177
OpenAlexW2112565026

What OpenQuestion holds

Textmetadata
LicenceTDM
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.