{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,1]],"date-time":"2026-09-01T00:17:52Z","timestamp":1788221872844,"version":"build-2803163510"},"reference-count":50,"publisher":"American Medical Association (AMA)","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JAMA Netw Open"],"DOI":"10.1001\/jamanetworkopen.2020.34993","type":"journal-article","created":{"date-parts":[[2021,2,8]],"date-time":"2021-02-08T22:19:36Z","timestamp":1612822776000},"page":"e2034993","source":"Crossref","is-referenced-by-count":81,"title":["Association of Preexisting Disability With Severe Maternal Morbidity or Mortality in Ontario, Canada"],"prefix":"10.1001","volume":"4","author":[{"given":"Hilary K.","family":"Brown","sequence":"first","affiliation":[{"name":"Department of Health and Society, University of Toronto Scarborough, Toronto, Ontario, Canada"},{"name":"Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada"},{"name":"Women\u2019s College Research Institute, Women\u2019s College Hospital, Toronto, Ontario, Canada"},{"name":"ICES, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joel G.","family":"Ray","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada"},{"name":"ICES, Toronto, Ontario, Canada"},{"name":"Li Ka Shing Knowledge Institute, St Michael\u2019s Hospital, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon","family":"Chen","sequence":"additional","affiliation":[{"name":"ICES, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Astrid","family":"Guttmann","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada"},{"name":"ICES, Toronto, Ontario, Canada"},{"name":"Hospital for Sick Children, Toronto, Ontario, Canada"},{"name":"Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan M.","family":"Havercamp","sequence":"additional","affiliation":[{"name":"Center for Psychiatry and Behavioral Health, Wexner Medical Center, The Ohio State University, Columbus"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Susan","family":"Parish","sequence":"additional","affiliation":[{"name":"College of Health Professions, Virginia Commonwealth University, Richmond"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simone N.","family":"Vigod","sequence":"additional","affiliation":[{"name":"Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada"},{"name":"Women\u2019s College Research Institute, Women\u2019s College Hospital, Toronto, Ontario, Canada"},{"name":"ICES, Toronto, Ontario, Canada"},{"name":"Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lesley A.","family":"Tarasoff","sequence":"additional","affiliation":[{"name":"Department of Health and Society, University of Toronto Scarborough, Toronto, Ontario, Canada"},{"name":"Azrieli Adult Neurodevelopmental Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yona","family":"Lunsky","sequence":"additional","affiliation":[{"name":"ICES, Toronto, Ontario, Canada"},{"name":"Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada"},{"name":"Azrieli Adult Neurodevelopmental Centre, Centre for Addiction and Mental Health, Toronto, Ontario, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"10","published-online":{"date-parts":[[2021,2,8]]},"reference":[{"issue":"1","key":"zoi201058r1","doi-asserted-by":"publisher","first-page":"E15","DOI":"10.25011\/cim.v38i1.22410","article-title":"Canada\u2019s pregnancy-related mortality rates: doing well but room for improvement.","volume":"38","author":"Verstraeten","year":"2015","journal-title":"Clin Invest Med"},{"issue":"6","key":"zoi201058r2","doi-asserted-by":"publisher","first-page":"332","DOI":"10.1053\/j.semperi.2017.07.007","article-title":"Epidemiology of maternal morbidity and mortality.","volume":"41","author":"Hirshberg","year":"2017","journal-title":"Semin Perinatol"},{"issue":"9","key":"zoi201058r3","doi-asserted-by":"publisher","first-page":"837","DOI":"10.1016\/S1701-2163(16)34655-2","article-title":"Severe maternal morbidity in Canada, 2003 to 2007: surveillance using routine hospitalization data and ICD-10CA codes.","volume":"32","author":"Joseph","year":"2010","journal-title":"J Obstet Gynaecol Can"},{"issue":"5","key":"zoi201058r4","doi-asserted-by":"publisher","first-page":"631","DOI":"10.1016\/j.jogc.2018.07.021","article-title":"Temporal variations in incidence and outcomes of critical illness among pregnant and postpartum women in Canada: a population-based observational study.","volume":"41","author":"Aoyama","year":"2019","journal-title":"J Obstet Gynaecol Can"},{"issue":"5","key":"zoi201058r5","doi-asserted-by":"publisher","first-page":"1029","DOI":"10.1097\/AOG.0b013e31826d60c5","article-title":"Severe maternal morbidity among delivery and postpartum hospitalizations in the United States.","volume":"120","author":"Callaghan","year":"2012","journal-title":"Obstet Gynecol"},{"issue":"1","key":"zoi201058r6","doi-asserted-by":"publisher","first-page":"3","DOI":"10.1089\/jwh.2013.4617","article-title":"Maternal mortality and morbidity in the United States: where are we now?","volume":"23","author":"Creanga","year":"2014","journal-title":"J Womens Health (Larchmt)"},{"issue":"3","key":"zoi201058r7","doi-asserted-by":"publisher","first-page":"345","DOI":"10.1111\/bjo.2011.118.issue-3","article-title":"Chronic heart disease and severe obstetric morbidity among hospitalisations for pregnancy in the USA: 1995-2006.","volume":"118","author":"Kuklina","year":"2011","journal-title":"BJOG"},{"issue":"2","key":"zoi201058r8","doi-asserted-by":"publisher","first-page":"139","DOI":"10.1016\/j.dhjo.2018.11.006","article-title":"Contraceptive knowledge and use among women with intellectual, physical, or sensory disabilities: a systematic review.","volume":"12","author":"Horner-Johnson","year":"2019","journal-title":"Disabil Health J"},{"issue":"3","key":"zoi201058r10","doi-asserted-by":"publisher","first-page":"376","DOI":"10.1016\/j.dhjo.2017.02.009","article-title":"Time trends in births and cesarean deliveries among women with disabilities.","volume":"10","author":"Horner-Johnson","year":"2017","journal-title":"Disabil Health J"},{"issue":"2","key":"zoi201058r11","doi-asserted-by":"publisher","first-page":"189","DOI":"10.1016\/j.ajog.2019.10.096","article-title":"Rates of recognized pregnancy in women with disabilities in Ontario, Canada.","volume":"222","author":"Brown","year":"2020","journal-title":"Am J Obstet Gynecol"},{"issue":"1","key":"zoi201058r12","doi-asserted-by":"publisher","first-page":"27.e1","DOI":"10.1016\/j.ajog.2019.07.015","article-title":"Maternal disability and risk for pregnancy, delivery, and postpartum complications: a systematic review and meta-analysis.","volume":"222","author":"Tarasoff","year":"2020","journal-title":"Am J Obstet Gynecol"},{"issue":"2","key":"zoi201058r13","doi-asserted-by":"publisher","first-page":"90","DOI":"10.1016\/j.pmrj.2012.10.011","article-title":"Pregnancy outcomes of women with physical disabilities: a matched cohort study.","volume":"5","author":"Morton","year":"2013","journal-title":"PM R"},{"issue":"5","key":"zoi201058r14","doi-asserted-by":"publisher","first-page":"953","DOI":"10.1097\/AOG.0000000000002321","article-title":"Pregnancy outcomes among deaf women in Washington state, 1987-2012.","volume":"130","author":"Schiff","year":"2017","journal-title":"Obstet Gynecol"},{"issue":"5","key":"zoi201058r15","doi-asserted-by":"publisher","first-page":"757","DOI":"10.1111\/1471-0528.14120","article-title":"Maternal and offspring outcomes in women with intellectual and developmental disabilities: a population-based cohort study.","volume":"124","author":"Brown","year":"2017","journal-title":"BJOG"},{"issue":"3","key":"zoi201058r16","doi-asserted-by":"publisher","first-page":"507","DOI":"10.1007\/s10995-015-1848-1","article-title":"Disparities in adverse preconception risk factors between women with and without disabilities.","volume":"20","author":"Mitra","year":"2016","journal-title":"Matern Child Health J"},{"issue":"4","key":"zoi201058r17","doi-asserted-by":"publisher","first-page":"418","DOI":"10.1016\/j.phr.2004.05.006","article-title":"Health disparities among adults with developmental disabilities, adults with other disabilities, and adults not reporting disability in North Carolina.","volume":"119","author":"Havercamp","year":"2004","journal-title":"Public Health Rep"},{"issue":"1","key":"zoi201058r18","doi-asserted-by":"publisher","first-page":"33","DOI":"10.1086\/598755","article-title":"Income poverty and material hardship among US women with disabilities.","volume":"83","author":"Parish","year":"2009","journal-title":"Soc Serv Rev."},{"issue":"7","key":"zoi201058r19","first-page":"1260","article-title":"Health disparities among childrearing women with disabilities.","volume":"17","author":"Kim","year":"2013","journal-title":"Matern Child Health J"},{"issue":"3","key":"zoi201058r20","doi-asserted-by":"publisher","first-page":"368","DOI":"10.1080\/19371910903240969","article-title":"Health disparities between women with and without disabilities: a review of the research.","volume":"25","author":"Wisdom","year":"2010","journal-title":"Soc Work Public Health"},{"issue":"12","key":"zoi201058r21","doi-asserted-by":"publisher","first-page":"1495","DOI":"10.1016\/j.ijsu.2014.07.013","article-title":"The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies.","volume":"12","author":"von Elm","year":"2014","journal-title":"Int J Surg"},{"issue":"3","key":"zoi201058r23","doi-asserted-by":"publisher","first-page":"336","DOI":"10.1016\/j.whi.2016.12.007","article-title":"Primary cesarean delivery patterns among women with physical, sensory, or intellectual disabilities.","volume":"27","author":"Darney","year":"2017","journal-title":"Womens Health Issues"},{"issue":"5","key":"zoi201058r24","doi-asserted-by":"publisher","first-page":"462","DOI":"10.1111\/jir.12002","article-title":"Using administrative health data to identify individuals with intellectual and developmental disabilities: a comparison of algorithms.","volume":"57","author":"Lin","year":"2013","journal-title":"J Intellect Disabil Res"},{"issue":"2","key":"zoi201058r27","doi-asserted-by":"publisher","first-page":"143","DOI":"10.1503\/cmaj.090979","article-title":"Proliferation of prenatal ultrasonography.","volume":"182","author":"You","year":"2010","journal-title":"CMAJ"},{"issue":"7","key":"zoi201058r28","doi-asserted-by":"crossref","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":"9","key":"zoi201058r29","first-page":"33","article-title":"Measuring \u201crurality\u201d for purposes of health-care planning: an empirical measure for Ontario.","volume":"67","author":"Kralj","year":"2000","journal-title":"Ont Med Rev"},{"issue":"3","key":"zoi201058r30","doi-asserted-by":"publisher","first-page":"512","DOI":"10.2337\/diacare.25.3.512","article-title":"Diabetes in Ontario: determination of prevalence and incidence using a validated administrative data algorithm.","volume":"25","author":"Hux","year":"2002","journal-title":"Diabetes Care"},{"issue":"1","key":"zoi201058r31","first-page":"e18","article-title":"Accuracy of administrative databases in identifying patients with hypertension.","volume":"1","author":"Tu","year":"2007","journal-title":"Open Med"},{"issue":"11","key":"zoi201058r32","doi-asserted-by":"publisher","first-page":"1388","DOI":"10.1016\/j.cjca.2013.07.676","article-title":"Validity of administrative data for identifying patients who have had a stroke or transient ischemic attack using EMRALD as a reference standard.","volume":"29","author":"Tu","year":"2013","journal-title":"Can J Cardiol"},{"issue":"12","key":"zoi201058r33","doi-asserted-by":"publisher","first-page":"1561","DOI":"10.1016\/j.cjca.2016.06.006","article-title":"Identifying patients with atrial fibrillation in administrative data.","volume":"32","author":"Tu","year":"2016","journal-title":"Can J Cardiol"},{"issue":"3","key":"zoi201058r34","doi-asserted-by":"publisher","first-page":"160","DOI":"10.24095\/hpcdp.33.3.06","article-title":"Identifying cases of congestive heart failure from administrative data: a validation study using primary care patient records.","volume":"33","author":"Schultz","year":"2013","journal-title":"Chronic Dis Inj Can"},{"issue":"4","key":"zoi201058r35","doi-asserted-by":"publisher","first-page":"141","DOI":"10.24095\/hpcdp.30.4.06","article-title":"Myocardial infarction and the validation of physician billing and hospitalization data using electronic medical records.","volume":"30","author":"Tu","year":"2010","journal-title":"Chronic Dis Can"},{"issue":"8","key":"zoi201058r37","doi-asserted-by":"publisher","first-page":"362","DOI":"10.1177\/070674371506000805","article-title":"Validation of a population-based algorithm to detect chronic psychotic illness.","volume":"60","author":"Kurdyak","year":"2015","journal-title":"Can J Psychiatry"},{"issue":"10","key":"zoi201058r38","doi-asserted-by":"publisher","first-page":"960","DOI":"10.1097\/00005650-200410000-00004","article-title":"Using administrative data to measure ambulatory mental health service provision in primary care.","volume":"42","author":"Steele","year":"2004","journal-title":"Med Care"},{"issue":"6","key":"zoi201058r39","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":"7","key":"zoi201058r40","doi-asserted-by":"publisher","first-page":"702","DOI":"10.1093\/aje\/kwh090","article-title":"A modified Poisson regression approach to prospective studies with binary data.","volume":"159","author":"Zou","year":"2004","journal-title":"Am J Epidemiol"},{"issue":"6","key":"zoi201058r41","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"},{"issue":"21","key":"zoi201058r42","doi-asserted-by":"publisher","first-page":"2263","DOI":"10.1001\/jama.2015.15553","article-title":"Relationship between cesarean delivery rate and maternal and neonatal mortality.","volume":"314","author":"Molina","year":"2015","journal-title":"JAMA"},{"issue":"2","key":"zoi201058r43","doi-asserted-by":"publisher","first-page":"310","DOI":"10.1097\/AOG.0000000000003370","article-title":"Severe maternal morbidity among stillbirth and live birth deliveries in California.","volume":"134","author":"Wall-Wieler","year":"2019","journal-title":"Obstet Gynecol"},{"issue":"1","key":"zoi201058r44","doi-asserted-by":"publisher","first-page":"2","DOI":"10.1186\/s12939-017-0715-7","article-title":"Socioeconomic status can affect pregnancy outcomes and complications, even with a universal healthcare system.","volume":"17","author":"Kim","year":"2018","journal-title":"Int J Equity Health"},{"issue":"3","key":"zoi201058r45","doi-asserted-by":"publisher","first-page":"200","DOI":"10.1136\/jech.54.3.200","article-title":"Disability and health status: ethnic differences among women in the United States.","volume":"54","author":"Andresen","year":"2000","journal-title":"J Epidemiol Community Health"},{"issue":"3","key":"zoi201058r46","doi-asserted-by":"publisher","first-page":"690","DOI":"10.1097\/AOG.0000000000000704","article-title":"Racial and ethnic disparities in maternal morbidity and mortality.","volume":"125","author":"Louis","year":"2015","journal-title":"Obstet Gynecol"},{"issue":"5","key":"zoi201058r47","doi-asserted-by":"publisher","first-page":"256","DOI":"10.1016\/S1049-3867(00)00054-2","article-title":"An intersection of women\u2019s and perinatal health: the role of chronic conditions.","volume":"10","author":"Misra","year":"2000","journal-title":"Womens Health Issues"},{"issue":"2","key":"zoi201058r48","doi-asserted-by":"publisher","first-page":"347","DOI":"10.1111\/milq.2002.80.issue-2","article-title":"Using administrative data to study persons with disabilities.","volume":"80","author":"Iezzoni","year":"2002","journal-title":"Milbank Q"},{"issue":"6","key":"zoi201058r49","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0157495","article-title":"Towards an inclusive and evidence-based definition of the maternal mortality ratio: an analysis of the distribution of time after delivery of maternal deaths in Mexico, 2010-2013.","volume":"11","author":"Lamadrid-Figueroa","year":"2016","journal-title":"PLoS One"},{"key":"zoi201058r50","article-title":"Social and structural determinants of health inequities in maternal health.","author":"Crear-Perry","year":"2020","journal-title":"J Womens Health (Larchmt)"},{"key":"zoi201058r9","volume-title":"Canadian Survey on Disability: Data Tables","author":"Statistics Canada","year":"2013"},{"key":"zoi201058r22","volume-title":"Patterns of Health Care in Ontario: The ICES Practice Atlas","author":"Williams","year":"1996","edition":"2nd Ed."},{"key":"zoi201058r25","volume-title":"Beta Chronic Condition Indicator (CCI) for ICD-10-CM: Healthcare Cost and Utilization Project (HCUP).","author":"Agency for Healthcare Research and Quality","year":"2018"},{"key":"zoi201058r26","volume-title":"International Classification of Functioning, Disability and Health: ICF.","author":"World Health Organization","year":"2001"},{"key":"zoi201058r36","unstructured":"The Johns Hopkins University. The Johns Hopkins ACG system: technical reference guide version 10.0, 2013. Accessed December 17, 2020. https:\/\/www.hopkinsacg.org\/document\/acg-system-version-10-0-technical-reference-guide\/"}],"container-title":["JAMA Network Open"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/jamanetwork.com\/journals\/jamanetworkopen\/articlepdf\/2776018\/brown_2021_oi_201058_1611938587.22718.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,2,8]],"date-time":"2021-02-08T22:19:46Z","timestamp":1612822786000},"score":1,"resource":{"primary":{"URL":"https:\/\/jamanetwork.com\/journals\/jamanetworkopen\/fullarticle\/2776018"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,2,8]]},"references-count":50,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2021,2,1]]}},"URL":"https:\/\/doi.org\/10.1001\/jamanetworkopen.2020.34993","relation":{},"ISSN":["2574-3805"],"issn-type":[{"value":"2574-3805","type":"electronic"}],"subject":[],"published":{"date-parts":[[2021,2,8]]}}}