ArticleEuropean journal of epidemiology2023
Target trial emulation of aspirin after diagnosis of colorectal polyps.
Article in European journal of epidemiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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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.
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.
Who cites it
6 citing papers in PubMed, 2 citations in OpenAlex.
- Platelet P2Y12 inhibitor use and risk of colorectal cancer incidence and colorectal cancer-related mortality: a Swedish registry-based cohort study.BMC gastroenterology · 2026Article
- Target trial emulation studies in oncology: a comprehensive analysis.The oncologist · 2026Article
- The intersection of colorectal cancer and cardiovascular disease: shared mechanisms and clinical implications.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Review
- Design and Implementation of Observational Studies Emulating a Target Trial.JAMA network open · 2026Article
- Target Trial Emulation of Beta-Blockers After Diagnosis of Colorectal Polyps-Beneficial in Women.United European gastroenterology journal · 2025Article
- Application of the target trial emulation framework to external comparator studies.Frontiers in drug safety and regulation · 2024Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 3 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGOUND AND
aimsPrevious research on the potential chemoprotective effect of aspirin for colorectal cancer (CRC) shows conflicting results. We aimed to emulate a trial of aspirin intiation in individuals with incident polyps.
methodsWe identified individuals registered with their first colorectal polyp in the nationwide gastrointestinal ESPRESSO histopathology cohort in Sweden. Individuals aged 45-79 years diagnosed with colorectal polyps 2006-2016 in Sweden without CRC or contraindications for preventive aspirin (cerebrovascular disease, heart failure, aortic aneurysms, pulmonary emboli, myocardial infarction, gastric ulcer, dementia, liver cirrhosis, or any other metastatic cancer) registered until the month of first polyp detection were eligible. Using duplication and inverse probability weighting, we emulated a target trial of aspirin initiation within 2 years of initial polyp detection. The main outcome measures were incident CRC, CRC mortality and all-cause mortality registered until 2019.
resultsOf 31,633 individuals meeting our inclusion criteria, 1716 (5%) initiated aspirin within 2 years of colon polyp diagnosis. Median follow-up was 8.07 years. The 10-year cumulative incidence in initiators versus non-initiators was 6% versus 8% for CRC incidence, 1% versus 1% for CRC mortality and 21% versus 18% for all-cause mortality. The corresponding hazard ratios were 0.88 (95% confidence interval, 95%CI = 0.86-0.90), 0.90 (95%CI = 0.75-1.06) and 1.18 (95%CI = 1.12-1.24).
conclusionAspirin initiation in individuals with polyp removal was linked to 2% lower cumulative incidence of CRC after 10 years but did not alter CRC mortality. We also observed a 4% increased risk difference of all-cause mortality at 10 years after the initiation of aspirin.
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