{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,8]],"date-time":"2026-09-08T12:22:17Z","timestamp":1788870137080,"version":"build-2803163510"},"reference-count":24,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2023,4,6]],"date-time":"2023-04-06T00:00:00Z","timestamp":1680739200000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Cephalalgia"],"published-print":{"date-parts":[[2023,5]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>There is a need for standardization of the definition of a migraine day for clinical and research purposes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We prospectively compared different definitions of a migraine day with E-diary data of n\u2009=\u20091494 patients with migraine. We used a baseline definition based on migraine characteristics with a duration of \u22654 hours OR triptan intake (independently from its effect) OR (visual) aura lasting 5\u201360 minutes.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Of all migraine days defined by triptan intake only, 66.2% had a duration &lt;4 hours. Adjusting the headache duration criterion to \u226530 minutes led to a decrease in days defined by triptan intake only and resulted in a 5.4% increase in total migraine days (equals 0.45 migraine day increase in monthly migraine days). These additional migraine days had a median duration of 2.5 hours.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>We propose to define a migraine day as follows: 1) (a) headache duration \u226530 minutes; (b) matching \u22652 of four characteristics: unilateral, pulsating, moderate to severe pain, aggravation by or causing avoidance of routine physical activity; and (c) during headache \u22651 of the following: nausea and\/or vomiting, photophobia and phonophobia or 2) (visual) aura duration 5\u201360 minutes or 3) a day with headache for which acute migraine-specific medication is used irrespective of its effect.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/03331024231166625","type":"journal-article","created":{"date-parts":[[2023,4,6]],"date-time":"2023-04-06T05:32:55Z","timestamp":1680759175000},"page":"033310242311666","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":15,"title":["Defining migraine days, based on longitudinal E-diary data"],"prefix":"10.1177","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8999-0087","authenticated-orcid":false,"given":"Britt W. H.","family":"van der Arend","sequence":"first","affiliation":[{"name":"Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9509-7233","authenticated-orcid":false,"given":"Iris E.","family":"Verhagen","sequence":"additional","affiliation":[{"name":"Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthijs","family":"van Leeuwen","sequence":"additional","affiliation":[{"name":"Leiden Institute of Advanced Computer Science, Leiden University, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marnick Q. T. P.","family":"van der Arend","sequence":"additional","affiliation":[{"name":"Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daphne S.","family":"van Casteren","sequence":"additional","affiliation":[{"name":"Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gisela M.","family":"Terwindt","sequence":"additional","affiliation":[{"name":"Department of Neurology, Leiden University Medical Center, Leiden, The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,4,6]]},"reference":[{"key":"bibr1-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102420941839"},{"key":"bibr2-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102418758283"},{"key":"bibr3-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-2982.2006.01155.x"},{"key":"bibr4-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1111\/j.1742-1241.2005.00469.x"},{"key":"bibr5-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-2982.2008.01639.x"},{"key":"bibr6-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/03331024211010306"},{"key":"bibr7-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0000000000012723"},{"key":"bibr8-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102420981739"},{"key":"bibr9-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1111\/ene.15075"},{"key":"bibr10-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102411418846"},{"key":"bibr11-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.53.3.537"},{"key":"bibr12-03331024231166625","first-page":"1","volume":"33","author":"Headache Classification Committee of the International Headache Society (IHS)","year":"2018","journal-title":"Cephalalgia"},{"key":"bibr13-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102410383590"},{"key":"bibr14-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102416636055"},{"key":"bibr15-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000325565.63526.d2"},{"key":"bibr16-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1093\/brain\/awz052"},{"key":"bibr17-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1007\/s10194-012-0479-9"},{"key":"bibr18-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0000000000008589"},{"key":"bibr19-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1212\/WNL.0b013e3181cbcd19"},{"key":"bibr20-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1111\/j.1468-2982.2003.00718.x"},{"key":"bibr21-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102416657147"},{"key":"bibr22-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-021-04250-3"},{"key":"bibr23-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1007\/s00415-020-09981-3"},{"key":"bibr24-03331024231166625","doi-asserted-by":"publisher","DOI":"10.1177\/0333102412461401"}],"container-title":["Cephalalgia"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/03331024231166625","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/03331024231166625","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/03331024231166625","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T14:45:44Z","timestamp":1777387544000},"score":1,"resource":{"primary":{"URL":"http:\/\/journals.sagepub.com\/doi\/10.1177\/03331024231166625"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,4,6]]},"references-count":24,"journal-issue":{"issue":"5","published-print":{"date-parts":[[2023,5]]}},"alternative-id":["10.1177\/03331024231166625"],"URL":"https:\/\/doi.org\/10.1177\/03331024231166625","relation":{},"ISSN":["0333-1024","1468-2982"],"issn-type":[{"value":"0333-1024","type":"print"},{"value":"1468-2982","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,4,6]]}}}