Effect of low-dose aspirin on health outcomes: An umbrella review of systematic reviews and meta-analyses.
aspirin
cancer
cardiovascular disease
meta-analysis
umbrella review
Journal
British journal of clinical pharmacology
ISSN: 1365-2125
Titre abrégé: Br J Clin Pharmacol
Pays: England
ID NLM: 7503323
Informations de publication
Date de publication:
08 2020
08 2020
Historique:
received:
30
10
2019
revised:
13
03
2020
accepted:
23
03
2020
pubmed:
4
6
2020
medline:
3
7
2021
entrez:
4
6
2020
Statut:
ppublish
Résumé
This study aimed to use an umbrella review methodology to capture the range of outcomes that were associated with low-dose aspirin and to systematically assess the credibility of this evidence. Aspirin is associated with several health outcomes, but the overall benefit/risk balance related to aspirin use is unclear. We searched three major databases up to 15 August 2019 for meta-analyses of observational studies and randomized controlled trials (RCTs) including low-dose aspirin compared to placebo or other treatments. Based on random-effects summary effect sizes, 95% prediction intervals, heterogeneity, small-study effects and excess significance, significant meta-analyses of observational studies were classified from convincing (class I) to weak (class IV). For meta-analyses of RCTs, outcomes with random effects P-value < .005 and a moderate/high GRADE assessment, were classified as strong evidence. From 6802 hits, 67 meta-analyses (156 outcomes) were eligible. Observational data showed highly suggestive evidence for aspirin use and increased risk of upper gastrointestinal bleeding (RR = 2.28, 95% CI: 1.97-2.64). In RCTs of low-dose aspirin, we observed strong evidence for lower risk of CVD in people without CVD (RR = 0.83; 95% CI: 0.79-0.87) and in general population (RR = 0.83; 95% CI: 0.79-0.89), higher risk of major gastrointestinal (RR = 1.47; 95% CI: 1.26-1.72) and intracranial bleeding (RR = 1.34; 95% CI: 1.18-1.53), and of major bleedings in people without CVD (RR = 1.62; 95% CI: 1.26-2.08). Compared to other active medications, low-dose aspirin had strong evidence for lower risk of bleeding, but also lower comparative efficacy. Low-dose aspirin significantly lowers CVD risk and increases risk of bleeding. Evidence for multiple other health outcomes is limited.
Identifiants
pubmed: 32488906
doi: 10.1111/bcp.14310
pmc: PMC7373714
doi:
Substances chimiques
Aspirin
R16CO5Y76E
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
1465-1475Subventions
Organisme : Cancer Research UK
ID : 22804
Pays : United Kingdom
Organisme : Department of Health
ID : ICA-CL-2017-03-001
Pays : United Kingdom
Organisme : Cancer Research UK
ID : C31250/A22804
Pays : United Kingdom
Informations de copyright
© 2020 The British Pharmacological Society.
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