Evidence map›Paper›PMID 21209949›Full record

ArticlePloS one2010

A prospective study of aspirin use and the risk of gastrointestinal bleeding in men.

Edward S Huang, Lisa L Strate, Wendy W Ho, Salina S Lee, Andrew T Chan

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 4 pooled it
2.1field-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

20 citing papers in PubMed, 4 syntheses or guidelines pooled it, 42 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Pooled it
  5. Review
  6. Article
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  10. Review
  11. Article
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  13. Article
  14. Article
  15. Venous thromboprophylaxis in gastrointestinal bleeding.Canadian journal of gastroenterology & hepatology · 2015
    Article
  16. Measures of adiposity are associated with increased risk of peptic ulcer.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2014
    Article
  17. Role of aspirin in cancer prevention.Current oncology reports · 2013
    Review
  18. Review
  19. Aspirin in the chemoprevention of colorectal neoplasia: an overview.Cancer prevention research (Philadelphia, Pa.) · 2012
    Review
  20. Aspirin for the prevention of colorectal cancer.Best practice & research. Clinical gastroenterology · 2011
    Review
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 at 5 institutions in 1 country.

Edward S HuangDivision of Gastroenterology and Hepatology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, United States of America. eshuang@partners.org
Lisa L Strate
Wendy W Ho
Salina S Lee
Andrew T Chan
Brigham and Women's Hospital · USMass General Brigham · USNorthwestern University · USUniversity of California, Los Angeles · USUniversity of Washington · US

Funding

Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ELIASSEN, A. HEATHER · 2000 to 2019
$77.8M
Validity of Diet and Activity Measures in WomenP01CA055075 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI WILLETT, WALTER C. · 1991 to 2009
$41.8M
Inflammation and Colorectal NeoplasiaR01CA137178 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI CHAN, ANDREW T · 2009 to 2019
$6.5M
Prospective Studies of Colorectal AdenomaK07CA107412 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI CHAN, ANDREW T · 2005 to 2009
$800k
NCI NIH HHS K07 CA107412NCI NIH HHS P01 CA055075NCI NIH HHS P01 CA087969NCI NIH HHS R01 CA137178
6 · The paper itself

Abstract

BACKGROUND AND

aimsData regarding the influence of dose and duration of aspirin use on risk of gastrointestinal bleeding are conflicting.

methodsWe conducted a prospective cohort study of 32,989 men enrolled in the Health Professionals Follow-up Study (HPFS) in 1994 who provided biennial aspirin data. We estimated relative risk of major gastrointestinal bleeding requiring hospitalization or a blood transfusion.

resultsDuring 14 years of follow-up, 707 men reported an episode of major gastrointestinal bleeding over 377,231 person-years. After adjusting for risk factors, regular aspirin use (≥2 times/week) had a multivariate relative risk (RR) of gastrointestinal bleeding of 1.32 (95% confidence interval [CI], 1.12-1.55) compared to non-regular use. The association was particularly evident for upper gastrointestinal bleeding (multivariate RR, 1.49; 95% CI, 1.16-1.92). Compared to men who denied any aspirin use, multivariate RRs of upper gastrointestinal bleeding were 1.05 (95% CI 0.71-1.52) for men who used 0.5-1.5 standard tablets/week, 1.31 (95% CI 0.88-1.95) for 2-5 aspirin/week, 1.63 (95% CI, 1.15-2.32) for 6-14 aspirin/week and 2.40 (95% CI, 1.10-5.22) for >14 aspirin/week (P(trend)<0.001). The relative risk also appeared to be dose-dependent among short-term users <5 years; P(trend)<.001) and long-term users (≥5 years; P(trend) = 0.015). In contrast, after controlling for dose, increasing duration of use did not appear to be associated with risk (P(trend) = 0.749).

conclusionsRegular aspirin use increases the risk of gastrointestinal bleeding, especially from the upper tract. However, risk of bleeding appears to be more strongly related to dose than to duration of use. Risk of bleeding should be minimized by using the lowest effective dose among short-term and long-term aspirin users.

Indexed as

AgedAspirinBlood TransfusionCohort StudiesGastrointestinal HemorrhageHemorrhageHumansMaleMiddle AgedMultivariate AnalysisProspective StudiesRiskSurveys and QuestionnairesTreatment OutcomeAspirin

Identifiers

PMID21209949
PMCPMC3012090
OpenAlexW2023176051

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.