{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,3]],"date-time":"2026-11-03T13:42:13Z","timestamp":1793713333026,"version":"4.6.1"},"reference-count":42,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2023,6,1]],"date-time":"2023-06-01T00:00:00Z","timestamp":1685577600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"}],"funder":[{"DOI":"10.13039\/100006483","name":"AbbVie","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100006483","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Cephalalgia"],"published-print":{"date-parts":[[2023,6]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>The Chronic Migraine Epidemiology and Outcomes-International study provides insight into people with migraine in multiple countries.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This cross-sectional, observational, web-based cohort study was conducted in Canada, France, Germany, Japan, United Kingdom, and United States. An initial Screening Module survey solicited general healthcare information from a representative sample and identified participants with migraine based on modified International Classification of Headache Disorders-3 criteria; those with migraine completed a detailed survey based on validated migraine-specific assessments.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Among 90,613 people who correctly completed the screening surveys, 76,121 respondents did not meet the criteria for migraine, while 14,492 did. Among respondents with migraine, mean age ranged from 40 to 42 years. The median number of monthly headache days ranged from 2.33 to 3.33 across countries, while the proportion of respondents with moderate-to-severe disability (measured by Migraine Disability Assessment) ranged from 30% (Japan) to 52% (Germany). The proportion of respondents with \u226515 monthly headache days ranged from 5.4% (France) to 9.5% (Japan). Fewer than half of respondents with migraine in each country reported having received a migraine diagnosis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>These results demonstrated high rates of migraine-related disability and underdiagnosis of migraine across six countries. This study will characterize country-level burden, treatment patterns, and geographical differences in care.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03331024231180611","type":"journal-article","created":{"date-parts":[[2023,6,14]],"date-time":"2023-06-14T09:09:45Z","timestamp":1686733785000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":23,"title":["Chronic Migraine Epidemiology and Outcomes \u2013 International (CaMEO-I) Study: Methods and multi-country baseline findings for diagnosis rates and care"],"prefix":"10.1177","volume":"43","author":[{"given":"Aubrey Manack","family":"Adams","sequence":"first","affiliation":[{"name":"AbbVie, Irvine, CA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dawn C.","family":"Buse","sequence":"additional","affiliation":[{"name":"The Saul R. Korey Department of Neurology, Albert Einstein College of Medicine, Bronx, NY, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elizabeth","family":"Leroux","sequence":"additional","affiliation":[{"name":"Brunswick Medical Center, Montreal, QC, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michel","family":"Lanteri-Minet","sequence":"additional","affiliation":[{"name":"Pain Department and FHU InovPain, CHU Nice and C\u00f4te Azur University, Nice, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fumihiko","family":"Sakai","sequence":"additional","affiliation":[{"name":"Saitama International Headache Center, Chuo-ku, Saitama City, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4960-2294","authenticated-orcid":false,"given":"Manjit S.","family":"Matharu","sequence":"additional","affiliation":[{"name":"Institute of Neurology, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zaza","family":"Katsarava","sequence":"additional","affiliation":[{"name":"Evangelical Hospital Unna, Unna, Germany"},{"name":"Department of Neurology, University of Duisburg-Essen, Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael L.","family":"Reed","sequence":"additional","affiliation":[{"name":"Vedanta Research, Chapel Hill, NC, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kristina","family":"Fanning","sequence":"additional","affiliation":[{"name":"MIST Research, Wilmington, NC, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Katherine","family":"Sommer","sequence":"additional","affiliation":[{"name":"AbbVie, Irvine, CA, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2652-2897","authenticated-orcid":false,"given":"Richard B.","family":"Lipton","sequence":"additional","affiliation":[{"name":"The Saul R. 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