Evidence map›Paper›PMID 20417931›Full record

ArticleGastrointestinal endoscopy2010

Association of smoking and flat adenomas: results from an asymptomatic population screened with a high-definition colonoscope.

Joseph C Anderson, Benjamin Stein, Charles J Kahi, Ramona Rajapakse, Grace Walker, Zvi Alpern

Open access · greenAbstract readComparative Study
In one paragraph

Article in Gastrointestinal endoscopy, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

12 citing papers in PubMed, 35 citations in OpenAlex.

  1. Trial
  2. Development and validation of a clinical score for predicting risk of adenoma at screening colonoscopy.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2015
    Trial
  3. Article
  4. Article
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  7. Article
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  9. Review
  10. Prevalence of colorectal adenomatous polyps in patients with chronic obstructive pulmonary disease.International journal of chronic obstructive pulmonary disease · 2015
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Joseph C AndersonDivision of Gastroenterology and Hepatology, University of Connecticut, Farmington, Connecticut 06030-1845, USA. joanderson@uchc.edu
Benjamin Stein
Charles J Kahi
Ramona Rajapakse
Grace Walker
Zvi Alpern
University of Connecticut · US

Funding

World Trade Center Worker and Volunteer Medical Screening ProgramM01RR010710 · NCRR · STATE UNIVERSITY NEW YORK STONY BROOK · PI GOLDSTEIN, RITA Z · 1998 to 2009
$17.6M
NCRR NIH HHS M01 RR010710NCRR NIH HHS MO1RR10710
6 · The paper itself

Abstract

backgroundFlat adenomas represent a morphologically distinct class of polyps that may be difficult to detect, and little is known regarding risk factors for these lesions. Identification of risk factors for these lesions may aid in colorectal cancer (CRC) screening, because patients at risk for these lesions may require special imaging techniques. Smoking, an important risk factor for CRC, may be associated with molecular changes that increase the risk for flat adenomas.

objectiveThe aim of this study was to examine the association between smoking and flat adenomas.

designProspective cross-sectional study.

settingUniversity hospital endoscopy center. PATIENTS: We enrolled asymptomatic patients presenting for CRC screening.

interventionsWe screened patients with a high-definition (1080i signal) wide-angle (170 degrees field of view) Olympus 180-series colonoscope. We collected demographics, medication use, family history of CRC, diet history, and smoking history. MAIN OUTCOME MEASUREMENTS: Polyp morphology, assessed by using the Japanese Research Society Classification (JRSC).

resultsA total of 600 patients were enrolled. We observed that smoking was associated with having a flat adenoma of any size (adjusted odds ratio [OR], 2.53; 95% CI, 1.60-4.00), having only flat adenomas that were > or = 6 mm in diameter (adjusted OR, 3.84; 95% CI, 2.02-7.32), as well as flat advanced adenomas (adjusted OR, 2.81; 95% CI, 1.08-7.30). LIMITATIONS: The study design may not account for some confounding variables and provides no information regarding smoking status at the time of initiation of flat adenomas.

conclusionSmoking was associated with flat adenomas in our population. Our findings may explain the earlier onset of CRC in smokers as well as the advanced stage with which they present, with compared with nonsmokers. Smokers may require screening with high-definition colonoscopes to detect flat adenomas.

Indexed as

ColonoscopyImage Processing, Computer-AssistedPopulation SurveillanceAdenomaColorectal NeoplasmsCross-Sectional StudiesDiagnosis, DifferentialFemaleHumansIncidenceMaleMass ScreeningMiddle AgedProspective StudiesRisk FactorsSmoking

Identifiers

PMID20417931
PMCPMC2897970
OpenAlexW2156014964

What OpenQuestion holds

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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.