{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T10:10:57Z","timestamp":1778235057636,"version":"3.51.4"},"reference-count":6,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2022,1,1]],"date-time":"2022-01-01T00:00:00Z","timestamp":1640995200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/100008794","name":"Research Manitoba","doi-asserted-by":"publisher","award":["n\/a"],"award-info":[{"award-number":["n\/a"]}],"id":[{"id":"10.13039\/100008794","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Multiple Sclerosis Journal - Experimental, Translational and Clinical"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p> Administrative data lack health behavior information. <\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p> We developed an administrative case definition for past or current (\u2018ever smoking\u2019) in 1320 individuals with MS from Manitoba, Canada. Candidate indicators for \u2018ever smoked\u2019 included smoking cessation medications, and diagnosis codes for tobacco use and chronic obstructive pulmonary disease, using variable lookback periods. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p> When compared to self-reported smoking status, the case definition incorporating all indicators over a lifetime lookback period had a sensitivity of 31.98%, and positive predictive value of 78.26%. <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p> This smoking status definition could only partially control for confounding due to smoking because of the low sensitivity. <\/jats:p><\/jats:sec>","DOI":"10.1177\/20552173221074296","type":"journal-article","created":{"date-parts":[[2022,1,21]],"date-time":"2022-01-21T14:34:37Z","timestamp":1642775677000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Development of an indicator of smoking status for people with multiple sclerosis in administrative data"],"prefix":"10.1177","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1855-5595","authenticated-orcid":false,"given":"Ruth Ann","family":"Marrie","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada"},{"name":"Department of Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qier","family":"Tan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Okechukwu","family":"Ekuma","sequence":"additional","affiliation":[{"name":"Manitoba Centre for Health Policy, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James J","family":"Marriott","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2022,1,21]]},"reference":[{"key":"bibr1-20552173221074296","doi-asserted-by":"publisher","DOI":"10.1002\/pds.3953"},{"key":"bibr2-20552173221074296","doi-asserted-by":"publisher","DOI":"10.1136\/amiajnl-2012-001557"},{"key":"bibr3-20552173221074296","doi-asserted-by":"publisher","DOI":"10.3389\/fneur.2021.754144"},{"key":"bibr4-20552173221074296","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0095029"},{"key":"bibr5-20552173221074296","doi-asserted-by":"publisher","DOI":"10.1080\/15412550903140865"},{"key":"bibr6-20552173221074296","doi-asserted-by":"publisher","DOI":"10.1002\/pds.2318"}],"container-title":["Multiple Sclerosis Journal - Experimental, Translational and Clinical"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20552173221074296","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/20552173221074296","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20552173221074296","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,3,1]],"date-time":"2025-03-01T16:37:25Z","timestamp":1740847045000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/20552173221074296"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,1]]},"references-count":6,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2022,1]]}},"alternative-id":["10.1177\/20552173221074296"],"URL":"https:\/\/doi.org\/10.1177\/20552173221074296","relation":{},"ISSN":["2055-2173","2055-2173"],"issn-type":[{"value":"2055-2173","type":"print"},{"value":"2055-2173","type":"electronic"}],"subject":[],"published":{"date-parts":[[2022,1]]},"article-number":"20552173221074296"}}