{"id":16490,"date":"2023-07-31T08:21:26","date_gmt":"2023-07-31T12:21:26","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=16490"},"modified":"2023-07-31T13:18:33","modified_gmt":"2023-07-31T17:18:33","slug":"prescription-of-oxycodone-versus-codeine-after-childbirth-and-risk-of-persistent-opioid-use-a-population-based-cohort-study","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/prescription-of-oxycodone-versus-codeine-after-childbirth-and-risk-of-persistent-opioid-use-a-population-based-cohort-study\/","title":{"rendered":"Prescription of oxycodone versus codeine after childbirth and risk of persistent opioid use: a population-based cohort study"},"content":{"rendered":"<div id=\"sec-1\" class=\"subsection\">\n<p id=\"p-2\"><strong>Background <\/strong>\u2014 Oxycodone is increasingly prescribed for postpartum analgesia in lieu of codeine owing to concerns regarding the neonatal safety of codeine during lactation. We examined whether initiation of oxycodone after delivery was associated with an increased risk of persistent opioid use relative to initiation of codeine.<\/p>\n<\/div>\n<div id=\"sec-2\" class=\"subsection\">\n<p id=\"p-3\"><strong>Methods <\/strong>\u2014&nbsp;We conducted a population-based cohort study of people who filled a prescription for either codeine or oxycodone within 7 days of discharge from hospital after delivery between Sept. 1, 2012, and June 30, 2020. The primary outcome was persistent opioid use, defined as 1 or more additional prescriptions for an opioid within 90 days of the first postpartum prescription and 1 or more additional prescriptions in the 91 to 365 days thereafter. We used inverse probability of treatment weighting to assess the risk of persistent postpartum opioid use, comparing people who initiated oxycodone with those who initiated codeine.<\/p>\n<\/div>\n<div id=\"sec-3\" class=\"subsection\">\n<p id=\"p-4\"><strong>Results <\/strong>\u2014&nbsp;Over the 8-year study period, we identified 70 607 people who filled an opioid prescription within 7 days of discharge from hospital: 21 308 (30.2%) received codeine and 49 299 (69.8%) oxycodone. Compared with people who filled a prescription for codeine, receipt of oxycodone was not associated with persistent opioid use (relative risk [RR] 1.04, 95% confidence interval [CI] 0.91\u20131.20). We found an association between a prescription for oxycodone and persistent use after vaginal delivery (RR 1.63, 95% CI 1.31\u20132.03), but not after cesarean delivery (RR 0.85, 95% CI 0.73\u20131.00).<\/p>\n<\/div>\n<div id=\"sec-4\" class=\"subsection\">\n<p id=\"p-5\"><strong>Interpretation <\/strong>\u2014&nbsp;Initiation of oxycodone (v. codeine) was not associated with an increased risk of persistent opioid use, except after vaginal delivery.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Background \u2014 Oxycodone is increasingly prescribed for postpartum analgesia in lieu of codeine owing to concerns regarding the neonatal safety of codeine during lactation. We examined whether initiation of oxycodone after delivery was associated with an increased risk of persistent opioid use relative to initiation of codeine. Methods \u2014&nbsp;We conducted a population-based cohort study of [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[26,56],"migration-helper-qa-sample-set":[],"class_list":["post-16490","journal_article","type-journal_article","status-publish","hentry","topic-maternity-and-neonatal-care","topic-pharmacoepidemiology-and-drug-safety"],"acf":{"citation":"Zipursky JS, Everett K, Gomes T, Paterson JM, Li P, Austin PC, Mamdani M, Ray JG, Juurlink DN. <em>CMAJ<\/em>; 2023 195(29): E973-83. Epub 2023 Jul 31.","source_url":"https:\/\/doi.org\/10.1503\/cmaj.221351","ices_scientist":[1137,1252,1100,1385,1338,1282],"site":[6733],"research_program":[6746],"news_release":"","journal_article":"","atlas":"","research_report":"","infographic":[16491],"video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Prescription of oxycodone versus codeine after childbirth and risk of persistent opioid use: a population-based cohort study<\/title>\n<meta name=\"description\" content=\"Background \u2014 Oxycodone is increasingly prescribed for postpartum analgesia in lieu of codeine owing to concerns regarding the neonatal safety of codeine\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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