{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T03:59:09Z","timestamp":1791259149796,"version":"4.1.0"},"reference-count":49,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,2,10]],"date-time":"2024-02-10T00:00:00Z","timestamp":1707523200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"J.-Louis L\u00e9vesque Foundation"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JCM"],"abstract":"<jats:p>Background: Aspirin at 150 mg daily, initiated in the 1st trimester of pregnancy, prevents preterm pre-eclampsia. We aimed to estimate whether a dose of 75 to 81 mg daily can help to prevent preterm pre-eclampsia as well. Methods: A systematic search was conducted using multiple databases and meta-analyses of randomized controlled trials (RCTs) that compared aspirin initiated in the first trimester of pregnancy to placebo or no treatment, following the PRISMA guidelines and the Cochrane risk of bias tool. Results: We retrieved 11 RCTs involving 13,981 participants. Five RCTs had a low risk of bias, one at unclear risk, and fiver had a high risk of bias. A pooled analysis demonstrated that doses of 75 to 81 mg of aspirin, compared to a placebo or no treatment, was not associated with a significant reduction in preterm pre-eclampsia (8 studies; 12,391 participants; relative risk, 0.66; 95% confidence interval: 0.27 to 1.62; p = 0.36), but there was a significant heterogeneity across the studies (I2 = 61%, p = 0.02). Conclusion: It cannot be concluded that taking 75 to 81 mg of aspirin daily reduces the risk of preterm pre-eclampsia. However, given the significant heterogeneity between the studies, the true effect that such a dose of aspirin would have on pregnancy outcomes could not be properly estimated.<\/jats:p>","DOI":"10.3390\/jcm13041022","type":"journal-article","created":{"date-parts":[[2024,2,12]],"date-time":"2024-02-12T03:50:27Z","timestamp":1707709827000},"page":"1022","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Aspirin at 75 to 81 mg Daily for the Prevention of Preterm Pre-Eclampsia: Systematic Review and Meta-Analysis"],"prefix":"10.3390","volume":"13","author":[{"given":"Brielle","family":"Demuth","sequence":"first","affiliation":[{"name":"Centre de Recherche du CHU de Qu\u00e9bec, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ariane","family":"Pellan","sequence":"additional","affiliation":[{"name":"Centre de Recherche du CHU de Qu\u00e9bec, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1907-2920","authenticated-orcid":false,"given":"Am\u00e9lie","family":"Boutin","sequence":"additional","affiliation":[{"name":"Centre de Recherche du CHU de Qu\u00e9bec, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Department of Pediatry, Faculty of Medicine, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6936-4369","authenticated-orcid":false,"given":"Emmanuel","family":"Bujold","sequence":"additional","affiliation":[{"name":"Centre de Recherche du CHU de Qu\u00e9bec, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Department of Obstetrics and Gynecology, Faculty of Medicine, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louise","family":"Ghesqui\u00e8re","sequence":"additional","affiliation":[{"name":"Centre de Recherche du CHU de Qu\u00e9bec, Universit\u00e9 Laval, Qu\u00e9bec, QC G1V 0A6, Canada"},{"name":"Department of Obstetrics, Centre Hospitalier Universitaire de Lille, 59000 Lille, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,2,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"(2020). 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