{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T12:23:22Z","timestamp":1783513402186,"version":"3.55.0"},"reference-count":56,"publisher":"Oxford University Press (OUP)","issue":"7","license":[{"start":{"date-parts":[[2026,1,15]],"date-time":"2026-01-15T00:00:00Z","timestamp":1768435200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001804","name":"Canada Research Chairs Program","doi-asserted-by":"crossref","award":["CRC 2019-00158"],"award-info":[{"award-number":["CRC 2019-00158"]}],"id":[{"id":"10.13039\/501100001804","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Data Sciences Institute at the University of Toronto","award":["DSI-DAGY3R1P04"],"award-info":[{"award-number":["DSI-DAGY3R1P04"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,7,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Migraine is a neurological disease associated with adverse perinatal outcomes. We examined the separate and combined impacts of migraine and comorbidity on risks of severe maternal morbidity\/mortality (SMM-M) and severe neonatal morbidity\/mortality (SNM-M). This population-based cohort study of pregnancies (n\u00a0=\u00a02\u2009643\u2009335) in Ontario, Canada, 2007-2022, compared females with (1) pre-pregnancy migraine and\u00a0\u22651 other chronic conditions, (2) migraine alone, (3) other chronic conditions alone, and (4) neither migraine\/other chronic conditions (referent) using modified Poisson regression. Attributable proportion due to interaction (aAP) reflected additive interaction between migraine and comorbidity. In the cohort, 6.8% had migraine and other chronic conditions, 3.2% migraine alone, 45.7% other chronic conditions alone, and 44.3% neither. The incidence of SMM-M was 1.6%, while SNM-M affected 7.1% of neonates. Risks of SMM-M and SNM-M were greatest in those doubly exposed (aRRSMM-M 1.60, 95% CI 1.54-1.66; aRRSNM-M 1.43, 1.39-1.46), followed by other chronic conditions alone (aRRSMM-M 1.34, 1.32-1.37; aRRSNM-M 1.30, 1.28-1.32), and migraine alone (aRRSMM-M 1.13, 1.07-1.20; aRRSNM-M 1.07, 1.04-1.11). Additive interaction was small for SMM-M (aAP 7.4%, 2.2-12.5) and SNM-M (aAP 3.7%, 0.3-6.9). Although synergistic effects were small, findings suggest individuals with migraine and comorbidity could benefit from preconception and perinatal supports to reduce their risks of perinatal complications.<\/jats:p>","DOI":"10.1093\/aje\/kwag008","type":"journal-article","created":{"date-parts":[[2026,1,14]],"date-time":"2026-01-14T12:42:19Z","timestamp":1768394539000},"page":"1933-1943","source":"Crossref","is-referenced-by-count":2,"title":["Migraine, comorbidity, and risks of severe maternal and neonatal morbidity or mortality: a population-based cohort study"],"prefix":"10.1093","volume":"195","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3310-380X","authenticated-orcid":false,"given":"Carmela Melina","family":"Albanese","sequence":"first","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto , Toronto, ON ,","place":["Canada"]},{"name":"ICES , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6516-4159","authenticated-orcid":false,"given":"Susan J","family":"Bondy","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto , Toronto, ON ,","place":["Canada"]},{"name":"ICES , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6281-4857","authenticated-orcid":false,"given":"Christine","family":"Lay","sequence":"additional","affiliation":[{"name":"Centre for Headache, Women\u2019s College Hospital , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2953-2540","authenticated-orcid":false,"given":"Manav V","family":"Vyas","sequence":"additional","affiliation":[{"name":"Centre for Headache, Women\u2019s College Hospital , Toronto, ON ,","place":["Canada"]},{"name":"Li Ka Shing Knowledge Institute, St. Michael\u2019s Hospital-Unity Health Toronto , Toronto, ON \u00a0","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7900-4826","authenticated-orcid":false,"given":"Zhiyin","family":"Li","sequence":"additional","affiliation":[{"name":"ICES , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-0282-8724","authenticated-orcid":false,"given":"Jun","family":"Guan","sequence":"additional","affiliation":[{"name":"ICES , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8690-5841","authenticated-orcid":false,"given":"Hilary K","family":"Brown","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto , Toronto, ON ,","place":["Canada"]},{"name":"ICES , Toronto, ON ,","place":["Canada"]},{"name":"Department of Health and Society, University of Toronto Scarborough , Toronto, ON ,","place":["Canada"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,1,15]]},"reference":[{"issue":"1","key":"2026070807573000700_ref1","doi-asserted-by":"publisher","first-page":"200","DOI":"10.1111\/head.13665","article-title":"Epidemiology and treatment of menstrual migraine and migraine during pregnancy and lactation: a narrative review","volume":"60","author":"Burch","year":"2020","journal-title":"Headache"},{"issue":"1","key":"2026070807573000700_ref2","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1177\/0333102417738202","article-title":"The International Classification of Headache Disorders, 3rd edition","volume":"38","author":"Headache Classification Committee of the International Headache Society (IHS)","year":"2018","journal-title":"Cephalalgia"},{"issue":"1","key":"2026070807573000700_ref3","doi-asserted-by":"publisher","first-page":"137","DOI":"10.1186\/s10194-020-01208-0","article-title":"Migraine remains second among the world\u2019s causes of disability, and first among young women: findings from GBD2019","volume":"21","author":"Steiner","year":"2020","journal-title":"J Headache Pain"},{"issue":"9","key":"2026070807573000700_ref4","doi-asserted-by":"publisher","first-page":"1177","DOI":"10.1001\/jamaneurol.2020.1435","article-title":"Migraines during pregnancy and the risk of maternal stroke","volume":"77","author":"Bandoli","year":"2020","journal-title":"JAMA Neurol"},{"issue":"2","key":"2026070807573000700_ref5","doi-asserted-by":"publisher","DOI":"10.1177\/03331024241229410","article-title":"How migraine and its associated treatment impact on pregnancy outcomes: umbrella review with updated systematic review and meta-analysis","volume":"44","author":"Phillips","year":"2024","journal-title":"Cephalalgia"},{"issue":"2","key":"2026070807573000700_ref6","doi-asserted-by":"publisher","first-page":"164","DOI":"10.3988\/jcn.2021.17.2.164","article-title":"The role of endothelial dysfunction in the pathophysiology and cerebrovascular effects of migraine: a narrative review","volume":"17","author":"Paolucci","year":"2021","journal-title":"J Clin Neurol"},{"issue":"7","key":"2026070807573000700_ref7","doi-asserted-by":"publisher","first-page":"984","DOI":"10.1136\/jnnp.2003.019638","article-title":"Platelet-leukocyte interaction and platelet activation in migraine: a link to ischemic stroke?","volume":"75","author":"Zeller","year":"2004","journal-title":"J Neurol Neurosurg Psychiatry"},{"issue":"14","key":"2026070807573000700_ref8","doi-asserted-by":"publisher","first-page":"1565","DOI":"10.1177\/03331024221118924","article-title":"The role of cytokines in migraine: a systematic review","volume":"42","author":"Thuraiaiyah","year":"2022","journal-title":"Cephalalgia"},{"issue":"5","key":"2026070807573000700_ref9","doi-asserted-by":"publisher","first-page":"371","DOI":"10.3109\/14767050903334877","article-title":"Use of acetaminophen during pregnancy and risk of preeclampsia, hypertensive and vascular disorders: a birth cohort study","volume":"23","author":"Rebordosa","year":"2010","journal-title":"J Matern Fetal Neonatal Med"},{"key":"2026070807573000700_ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.reprotox.2024.108561","article-title":"Pregnancy outcomes and birth defects in offspring following non-steroidal anti-inflammatory drugs exposure during pregnancy: a systematic review and meta-analysis","volume":"125","author":"Chen","year":"2024","journal-title":"Reprod Toxicol"},{"issue":"4","key":"2026070807573000700_ref11","doi-asserted-by":"publisher","first-page":"436","DOI":"10.1001\/jamapsychiatry.2013.684","article-title":"Selected pregnancy and delivery outcomes after exposure to antidepressant medication: a systematic review and meta-analysis","volume":"70","author":"Ross","year":"2013","journal-title":"JAMA Psychiatry"},{"issue":"12","key":"2026070807573000700_ref12","doi-asserted-by":"publisher","first-page":"1003","DOI":"10.1161\/CIRCULATIONAHA.114.009029","article-title":"Cardiovascular physiology of pregnancy","volume":"130","author":"Sanghavi","year":"2014","journal-title":"Circulation"},{"issue":"7","key":"2026070807573000700_ref13","doi-asserted-by":"publisher","first-page":"455","DOI":"10.1016\/0021-9681(70)90054-8","article-title":"The pre-therapeutic classification of co-morbidity in chronic disease","volume":"23","author":"Feinstein","year":"1970","journal-title":"J Chronic Dis"},{"key":"2026070807573000700_ref14","doi-asserted-by":"publisher","DOI":"10.3389\/fnhum.2021.640574","article-title":"Pathophysiological bases of comorbidity in migraine","volume":"15","author":"Altamura","year":"2021","journal-title":"Front Hum Neurosci"},{"issue":"7","key":"2026070807573000700_ref15","doi-asserted-by":"publisher","first-page":"741","DOI":"10.1136\/jnnp-2015-312233","article-title":"Migraine and its psychiatric comorbidities","volume":"87","author":"Minen","year":"2016","journal-title":"J Neurol Neurosurg Psychiatry"},{"issue":"3","key":"2026070807573000700_ref16","doi-asserted-by":"publisher","first-page":"167","DOI":"10.1080\/14767050500260566","article-title":"Risk of preeclampsia in relation to maternal history of migraine headaches","volume":"18","author":"Adeney","year":"2005","journal-title":"J Matern Fetal Neonatal Med"},{"issue":"2","key":"2026070807573000700_ref17","doi-asserted-by":"publisher","first-page":"116","DOI":"10.1111\/j.1365-3016.2010.01182.x","article-title":"Risk of preterm delivery and hypertensive disorders of pregnancy in relation to maternal co-morbid mood and migraine disorders during pregnancy","volume":"25","author":"Cripe","year":"2011","journal-title":"Paediatr Perinat Epidemiol"},{"key":"2026070807573000700_ref18","doi-asserted-by":"publisher","DOI":"10.1155\/2012\/858097","article-title":"Migraine-asthma comorbidity and risk of hypertensive disorders of pregnancy","volume":"2012","author":"Czerwinski","year":"2012","journal-title":"J Pregnancy"},{"issue":"10","key":"2026070807573000700_ref19","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pmed.1001885","article-title":"The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) statement","volume":"12","author":"Benchimol","year":"2015","journal-title":"PLoS Med"},{"issue":"2","key":"2026070807573000700_ref20","doi-asserted-by":"publisher","first-page":"1135","DOI":"10.23889\/ijpds.v4i2.1135","article-title":"ICES: data, discovery, better health","volume":"4","author":"Schull","year":"2020","journal-title":"IJPDS"},{"key":"2026070807573000700_ref21","article-title":"Canadian Institute for Health Information Discharge Abstract Database: a validation study","author":"Juurlink","year":"2006","journal-title":"ICES"},{"issue":"3","key":"2026070807573000700_ref22","doi-asserted-by":"crossref","first-page":"96","DOI":"10.24095\/hpcdp.29.3.01","article-title":"Validation of perinatal data in the Discharge Abstract Database of the Canadian Institute for Health Information","volume":"29","author":"Joseph","year":"2009","journal-title":"Chronic Dis Can"},{"issue":"5","key":"2026070807573000700_ref23","doi-asserted-by":"publisher","first-page":"599","DOI":"10.1097\/EDE.0000000000001890","article-title":"Use of health administrative data to identify migraine in individuals with a recognized pregnancy: a validation study in Ontario","volume":"36","author":"Albanese","year":"2025","journal-title":"Can Epidemiol"},{"key":"2026070807573000700_ref24","article-title":"Canadian Perinatal Surveillance System","author":"Government of Canada"},{"issue":"7","key":"2026070807573000700_ref25","doi-asserted-by":"publisher","DOI":"10.1001\/jamanetworkopen.2018.4571","article-title":"Prevalence of severe maternal morbidity and factors associated with maternal mortality in Ontario, Canada","volume":"1","author":"Ray","year":"2018","journal-title":"JAMA Netw Open"},{"issue":"1","key":"2026070807573000700_ref26","doi-asserted-by":"publisher","first-page":"114","DOI":"10.1159\/000540559","article-title":"Neonatal adverse outcomes among hospital livebirths in Canada: a national retrospective study","volume":"122","author":"Nelson","year":"2025","journal-title":"Neonatology"},{"issue":"5","key":"2026070807573000700_ref27","doi-asserted-by":"publisher","first-page":"F502","DOI":"10.1136\/archdischild-2018-315147","article-title":"Establishing a composite neonatal adverse outcome indicator using English hospital administrative data","volume":"104","author":"Knight","year":"2019","journal-title":"Arch Dis Child Fetal Neonatal Ed"},{"issue":"1","key":"2026070807573000700_ref28","doi-asserted-by":"publisher","DOI":"10.23889\/ijpds.v5i1.1337","article-title":"A composite neonatal adverse outcome indicator using population-based data: an update","volume":"5","author":"Todd","year":"2020","journal-title":"Int J Popul Data Sci"},{"issue":"2","key":"2026070807573000700_ref29","doi-asserted-by":"publisher","first-page":"190","DOI":"10.1111\/ppe.12816","article-title":"Measuring severe neonatal morbidity using hospital discharge data in France","volume":"36","author":"Lebreton","year":"2022","journal-title":"Paediatr Perinat Epidemiol"},{"issue":"1","key":"2026070807573000700_ref30","doi-asserted-by":"publisher","first-page":"65","DOI":"10.1016\/s0749-3797(03)00090-4","article-title":"Integrated perinatal health framework. A multiple determinants model with a life span approach","volume":"25","author":"Misra","year":"2003","journal-title":"Am J Prev Med"},{"issue":"6","key":"2026070807573000700_ref31","doi-asserted-by":"publisher","first-page":"1228","DOI":"10.1080\/03610910902859574","article-title":"Using the standardized difference to compare the prevalence of a binary variable between two groups in observational research","volume":"38","author":"Austin","year":"2009","journal-title":"Commun Stat Simul Comput"},{"issue":"6","key":"2026070807573000700_ref32","doi-asserted-by":"publisher","first-page":"661","DOI":"10.1177\/0962280211427759","article-title":"Extension of the modified Poisson regression model to prospective studies with correlated binary data","volume":"22","author":"Zou","year":"2013","journal-title":"Stat Methods Med Res"},{"key":"2026070807573000700_ref33","first-page":"619","volume-title":"Modern Epidemiology","author":"VanderWeele","year":"2021","edition":"4th"},{"issue":"2","key":"2026070807573000700_ref34","doi-asserted-by":"publisher","first-page":"212","DOI":"10.1093\/aje\/kwn104","article-title":"On the estimation of additive interaction by use of the four-by-two table and beyond","volume":"168","author":"Zou","year":"2008","journal-title":"Am J Epidemiol"},{"key":"2026070807573000700_ref35","article-title":"Quantitative Bias Analysis Spreadsheet [Microsoft Excel Worksheet]","author":"Fox","year":"2007"},{"key":"2026070807573000700_ref36","volume-title":"SAS Enterprise Guide","year":"2020"},{"key":"2026070807573000700_ref37","volume-title":"R: A Language and Environment for Statistical Computing","year":"2022"},{"issue":"8","key":"2026070807573000700_ref38","doi-asserted-by":"publisher","DOI":"10.1136\/bmjopen-2022-063826","article-title":"Adverse childhood experiences, the risk of pregnancy complications and adverse pregnancy outcomes: a systematic review and meta-analysis","volume":"13","author":"Mamun","year":"2023","journal-title":"BMJ Open"},{"issue":"21","key":"2026070807573000700_ref39","doi-asserted-by":"publisher","first-page":"e2151","DOI":"10.1212\/WNL.0000000000207910","article-title":"Adverse childhood experiences and primary headache disorders: a systematic review, meta-analysis, and application of a biological theory","volume":"101","author":"Sikorski","year":"2023","journal-title":"Neurology"},{"issue":"5","key":"2026070807573000700_ref40","doi-asserted-by":"publisher","first-page":"549","DOI":"10.1080\/09537104.2019.1595561","article-title":"Platelet function in preeclampsia: a systematic review and meta-analysis","volume":"30","author":"Jakobsen","year":"2019","journal-title":"Platelets"},{"issue":"8","key":"2026070807573000700_ref41","doi-asserted-by":"publisher","first-page":"628","DOI":"10.1212\/WNL.0b013e3181d0cc8b","article-title":"Migraine and cardiovascular disease: a population-based study","volume":"74","author":"Bigal","year":"2010","journal-title":"Neurology"},{"key":"2026070807573000700_ref42","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.k96","article-title":"Migraine and risk of cardiovascular diseases: Danish population based matched cohort study","volume":"360","author":"Adelborg","year":"2018","journal-title":"BMJ."},{"issue":"12","key":"2026070807573000700_ref43","doi-asserted-by":"publisher","DOI":"10.1016\/j.jogc.2024.102689","article-title":"Mortality following childbirth in Ontario: a 20-year analysis of temporal trends and causes","volume":"46","author":"Sprague","year":"2024","journal-title":"J Obstet Gynaecol Can"},{"issue":"21","key":"2026070807573000700_ref44","doi-asserted-by":"publisher","DOI":"10.1161\/JAHA.118.009395","article-title":"Neonatal and maternal outcomes in pregnant women with cardiac disease","volume":"7","author":"Owens","year":"2018","journal-title":"JAHA"},{"issue":"6","key":"2026070807573000700_ref45","doi-asserted-by":"publisher","first-page":"869","DOI":"10.1111\/head.13536","article-title":"Pregnancy, birth, neonatal, and postnatal neurological outcomes after pregnancy with migraine","volume":"59","author":"Skajaa","year":"2019","journal-title":"Headache"},{"issue":"S3","key":"2026070807573000700_ref46","doi-asserted-by":"publisher","first-page":"391","DOI":"10.1007\/s11606-007-0322-1","article-title":"Multiple chronic conditions: prevalence, health consequences, and implications for quality, care management, and costs","volume":"22 Suppl 3","author":"Vogeli","year":"2007","journal-title":"J Gen Intern Med"},{"key":"2026070807573000700_ref47","doi-asserted-by":"publisher","DOI":"10.1016\/j.midw.2022.103572","article-title":"Trends in perinatal outcomes of women with chronic medical conditions: a 10-year population-based study in the Netherlands","volume":"118","author":"Rosman","year":"2023","journal-title":"Midwifery"},{"issue":"5","key":"2026070807573000700_ref48","doi-asserted-by":"publisher","first-page":"747","DOI":"10.1097\/AOG.0000000000004562","article-title":"Association of epilepsy and severe maternal morbidity","volume":"138","author":"Panelli","year":"2021","journal-title":"Obstet Gyneco"},{"issue":"3","key":"2026070807573000700_ref49","doi-asserted-by":"publisher","first-page":"E167","DOI":"10.1097\/HTR.0000000000000807","article-title":"Pregnancy, fetal, and neonatal outcomes among women with traumatic brain injury","volume":"38","author":"Adams","year":"2023","journal-title":"J Head Trauma Rehabil"},{"key":"2026070807573000700_ref50","doi-asserted-by":"publisher","DOI":"10.25318\/1310042901-eng","article-title":"Table 13-10-0429-01 live births and fetal deaths (stillbirths), by place of birth (hospital or non-hospital)","author":"Statistics Canada","year":"2021"},{"issue":"3","key":"2026070807573000700_ref51","doi-asserted-by":"publisher","first-page":"680","DOI":"10.1093\/ije\/dyi060","article-title":"Proper interpretation of non-differential misclassification effects: expectations vs observations","volume":"34","author":"Jurek","year":"2005","journal-title":"Int J Epidemiol"},{"issue":"3","key":"2026070807573000700_ref52","doi-asserted-by":"publisher","first-page":"301","DOI":"10.1177\/0333102410381145","article-title":"Disability, HRQoL and resource use among chronic and episodic migraineurs: results from the International Burden of Migraine Study (IBMS)","volume":"31","author":"Blumenfeld","year":"2011","journal-title":"Cephalalgia"},{"issue":"4","key":"2026070807573000700_ref53","doi-asserted-by":"publisher","first-page":"357","DOI":"10.1370\/afm.983","article-title":"Defining comorbidity: implications for understanding health and health services","volume":"7","author":"Valderas","year":"2009","journal-title":"Ann Fam Med"},{"issue":"S1","key":"2026070807573000700_ref54","doi-asserted-by":"publisher","first-page":"S129","DOI":"10.1007\/s10995-006-0102-2","article-title":"Ensuring the safe and effective use of medications during pregnancy: planning and prevention through preconception care","volume":"10","author":"Cragan","year":"2006","journal-title":"Matern Child Health J"},{"key":"2026070807573000700_ref55","volume-title":"Innovating Care for People with Multiple Chronic Conditions in Europe: An Overview","author":"Van der Heide","year":"2015"},{"issue":"1","key":"2026070807573000700_ref56","doi-asserted-by":"publisher","first-page":"87","DOI":"10.1016\/j.whi.2015.10.003","article-title":"Improving pregnancy outcomes through maternity care coordination: a systematic review","volume":"26","author":"Kroll-Desrosiers","year":"2016","journal-title":"Womens Health Issues"}],"container-title":["American Journal of Epidemiology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/aje\/advance-article-pdf\/doi\/10.1093\/aje\/kwag008\/66419026\/kwag008.pdf","content-type":"application\/pdf","content-version":"am","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/aje\/article-pdf\/195\/7\/1933\/66419026\/kwag008.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/aje\/article-pdf\/195\/7\/1933\/66419026\/kwag008.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T11:58:46Z","timestamp":1783511926000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/aje\/article\/195\/7\/1933\/8426104"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,1,15]]},"references-count":56,"journal-issue":{"issue":"7","published-online":{"date-parts":[[2026,1,15]]},"published-print":{"date-parts":[[2026,7,8]]}},"URL":"https:\/\/doi.org\/10.1093\/aje\/kwag008","relation":{},"ISSN":["0002-9262","1476-6256"],"issn-type":[{"value":"0002-9262","type":"print"},{"value":"1476-6256","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2026,7]]},"published":{"date-parts":[[2026,1,15]]}}}