{"id":20927,"date":"2025-01-22T16:00:00","date_gmt":"2025-01-22T21:00:00","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&#038;p=20927"},"modified":"2025-01-22T16:29:37","modified_gmt":"2025-01-22T21:29:37","slug":"peripartum-mental-illness-in-mothers-with-multiple-sclerosis-and-other-chronic-diseases-in-ontario-canada","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/peripartum-mental-illness-in-mothers-with-multiple-sclerosis-and-other-chronic-diseases-in-ontario-canada\/","title":{"rendered":"Peripartum mental illness in mothers with multiple sclerosis and other chronic diseases in Ontario, Canada\u00a0"},"content":{"rendered":"<p><strong>Background and objectives<\/strong> \u2014 Peripartum mood and anxiety disorders constitute the most frequent form of maternal morbidity in the general population, but little is known about peripartum mental illness in mothers with multiple sclerosis (MS). We compared the incidence and prevalence of peripartum mental illness among mothers with MS, epilepsy, inflammatory bowel disease (IBD), and diabetes and women without these conditions.<\/p>\n<p><strong>Methods<\/strong> \u2014 Using linked population-based administrative health data from ON, Canada, we conducted a cohort study of mothers with MS, epilepsy, IBD, and diabetes and without these diseases (comparators) who had a live birth with index dates, defined as 1 year before conception, between 2002 and 2017. Using validated definitions, we estimated the incidence and prevalence of mental illness (any, depression, anxiety, bipolar disorder, psychosis, substance use, suicide attempt) during the prenatal (PN) period (from conception to birth) and 3 years postpartum. We compared incidence and prevalence estimates between cohorts using simple incidence ratios (IRs) and prevalence ratios with 95% CIs and using Poisson regression models adjusting for confounders.<\/p>\n<p><strong>Results<\/strong> \u2014 We included 894,852 mothers (1,745 with MS; 5,954 with epilepsy; 4,924 with IBD; 13,002 with diabetes; 869,227 comparators). At conception, the mean (SD) maternal age was 28.6 (5.7) years. Any incident mental illness affected 8.4% of mothers with MS prenatally and 14.2% during the first postpartum year; depression and anxiety were the most common incident disorders. The first postpartum year was a higher risk period than the PN period (any mental illness IR 1.27; 95% CI 1.08\u20131.50). After adjustment, mothers with MS had an increased incidence of any mental illness during the PN (IR 1.26; 95% CI 1.11\u20131.44) and postpartum (IR 1.33; 95% CI 1.20\u20131.47, first postpartum year) periods than comparator mothers. Similarly, mothers with MS had an increased incidence of all specific mental illnesses except suicide attempt during the PN period vs comparator mothers. Any prevalent mental illness affected 42% of mothers with MS prenatally and 50.3% in the first postpartum year.<\/p>\n<p><strong>Discussion<\/strong> \u2014 Mothers with MS had an elevated incidence and prevalence of peripartum mental illness compared with comparator mothers, although residual confounding cannot be excluded. These findings emphasize the need for preventive interventions and early treatment of mental illness.<\/p>\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Background and objectives \u2014 Peripartum mood and anxiety disorders constitute the most frequent form of maternal morbidity in the general population, but little is known about peripartum mental illness in mothers with multiple sclerosis (MS). We compared the incidence and prevalence of peripartum mental illness among mothers with MS, epilepsy, inflammatory bowel disease (IBD), and [&hellip;]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[42,26,34],"migration-helper-qa-sample-set":[],"class_list":["post-20927","journal_article","type-journal_article","status-publish","hentry","topic-chronic-diseases-and-multimorbidity","topic-maternity-and-neonatal-care","topic-mental-health-and-addictions"],"acf":{"citation":"Marrie RA, Bolton JM, Ling V, Bernstein CN, Krysko KM, Li P, McKay KA, Pequeno P, Razaz N, Rotstein DL, Deakin-Harb K, Maxwell CJ. <em>Neurology<\/em>. 2025; 104 (4).","source_url":"https:\/\/doi.org\/10.1212\/WNL.0000000000210170","ices_scientist":[1322],"site":[6733],"research_program":[6746],"news_release":[20928],"journal_article":"","atlas":"","research_report":"","infographic":"","video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>ICES | Peripartum mental illness in mothers with multiple sclerosis and other chronic diseases in Ontario, Canada\u00a0<\/title>\n<meta name=\"description\" content=\"Background and objectives \u2014 Peripartum mood and anxiety disorders constitute the most frequent form of maternal morbidity in the general population, but\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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