{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,16]],"date-time":"2025-09-16T16:28:50Z","timestamp":1758040130962,"version":"3.44.0"},"reference-count":7,"publisher":"Elsevier BV","license":[{"start":{"date-parts":[[2020,7,1]],"date-time":"2020-07-01T00:00:00Z","timestamp":1593561600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2020,7,1]],"date-time":"2020-07-01T00:00:00Z","timestamp":1593561600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"}],"content-domain":{"domain":["ajconline.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["The American Journal of Cardiology"],"published-print":{"date-parts":[[2020,7]]},"DOI":"10.1016\/j.amjcard.2020.04.032","type":"journal-article","created":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T15:57:11Z","timestamp":1588607831000},"page":"200","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":1,"special_numbering":"C","title":["Simpson's Paradox in Meta-Analysis \u2013 Choice of Studies and Summary Statistics"],"prefix":"10.1016","volume":"127","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0231-2393","authenticated-orcid":false,"given":"Jeffrey Shi Kai","family":"Chan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amer","family":"Harky","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.amjcard.2020.04.032_bib0001","doi-asserted-by":"crossref","first-page":"1285","DOI":"10.1016\/j.amjcard.2020.01.031","article-title":"Simpson's Paradox: meta-analysis comparing torsemide versus furosemide in patients with heart failure","volume":"125","author":"Baduashvili","year":"2020","journal-title":"Am J Cardiol"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0002","doi-asserted-by":"crossref","first-page":"238","DOI":"10.1111\/j.2517-6161.1951.tb00088.x","article-title":"The interpretation of interaction in contingency tables","volume":"13","author":"Simpson","year":"1951","journal-title":"J R Stat Soc Ser B"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0003","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1016\/j.amjcard.2019.09.039","article-title":"Meta-analysis comparing torsemide versus furosemide in patients with heart failure","volume":"125","author":"Abraham","year":"2020","journal-title":"Am J Cardiol"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0004","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1053\/j.jvca.2019.03.029","article-title":"General anesthesia versus local anesthesia in carotid endarterectomy: a systematic review and meta-analysis","volume":"34","author":"Harky","year":"2020","journal-title":"J Cardiothorac Vasc Anesth"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0005","doi-asserted-by":"crossref","first-page":"613","DOI":"10.1097\/00001648-200009000-00022","article-title":"Simpson's paradox in meta-analysis","volume":"11","author":"Hanley","year":"2000","journal-title":"Epidemiology"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0006","doi-asserted-by":"crossref","first-page":"34","DOI":"10.1186\/1471-2288-8-34","article-title":"Simpson's paradox visualized: the example of the rosiglitazone meta-analysis","volume":"8","author":"R\u00fccker","year":"2008","journal-title":"BMC Med Res Methodol"},{"key":"10.1016\/j.amjcard.2020.04.032_bib0007","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1186\/1471-2288-2-3","article-title":"Meta-analysis, Simpson's paradox, and the number needed to treat","volume":"2","author":"Altman","year":"2002","journal-title":"BMC Med Res Methodol"}],"container-title":["The American Journal of Cardiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S000291492030429X?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S000291492030429X?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T06:34:36Z","timestamp":1757572476000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S000291492030429X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,7]]},"references-count":7,"alternative-id":["S000291492030429X"],"URL":"https:\/\/doi.org\/10.1016\/j.amjcard.2020.04.032","relation":{},"ISSN":["0002-9149"],"issn-type":[{"type":"print","value":"0002-9149"}],"subject":[],"published":{"date-parts":[[2020,7]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Simpson's Paradox in Meta-Analysis \u2013 Choice of Studies and Summary Statistics","name":"articletitle","label":"Article Title"},{"value":"The American Journal of Cardiology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.amjcard.2020.04.032","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"simple-article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2020 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}