{"id":23310,"date":"2026-02-22T09:05:59","date_gmt":"2026-02-22T14:05:59","guid":{"rendered":"https:\/\/www.ices.on.ca\/?post_type=journal_article&p=23310"},"modified":"2026-02-23T09:10:39","modified_gmt":"2026-02-23T14:10:39","slug":"factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities","status":"publish","type":"journal_article","link":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/","title":{"rendered":"Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study"},"content":{"rendered":"

Background<\/strong> \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD. Identifying factors associated with receipt of breast cancer treatment among those with IDD is needed to provide guidance and inform resources for improving patient-centred care. This study explores factors associated with receipt of breast cancer treatment among individuals with IDD.<\/p>\n

Methods<\/strong> \u2014 We conducted a population-based retrospective cohort study with administrative health data in Ontario, Canada. Adults with IDD diagnosed with Stage I\u2013III female breast cancer between 2007 and 2018 were included. We examined factors associated with receipt of breast cancer treatment based on stage-specific guideline recommendations. Sociodemographic (e.g., age, region, and rurality), clinical (e.g., comorbidities), cancer-related (e.g., stage at diagnosis and nodal status) and health system (e.g., family interview with a physician) factors associated with overall treatment, surgical resection, mastectomy and radiation were explored using modified Poisson regression with robust standard error variance. Crude and adjusted risk ratios with 95% confidence intervals were estimated.<\/p>\n

Results<\/strong> \u2014 The overall treatment cohort, surgical resection cohort, mastectomy cohort and radiation cohort included 365, 365, 333 and 138 females with IDD, respectively. Age, stage at diagnosis and lymph node status were significantly associated with overall breast cancer treatment. We identified that age, grade, lymph node status and radiation consult were significantly associated with surgical resection receipt. Among individuals who received surgery, those who were older, who had more advanced stages at diagnosis or who had a family interview were more likely to have mastectomy rather than breast-conserving surgery. Age and lymph node status were significantly associated with receipt of radiation.<\/p>\n

Conclusions<\/strong> \u2014 Sociodemographic, clinical, cancer-related and health system factors were associated with receipt of breast cancer treatment in a sample of breast cancer patients with IDD. Overall, these findings suggest that health system factors could contribute to disparities in treatment among individuals with IDD diagnosed with breast cancer.<\/p>\n","protected":false},"excerpt":{"rendered":"

Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD. Identifying factors associated with receipt of breast cancer treatment among those with IDD is needed to provide guidance and inform resources for improving patient-centred care. This study explores factors associated with receipt of breast cancer treatment […]<\/p>\n","protected":false},"template":"","migration-helper-automated":[],"migration-manual":[],"topic":[38,20,19],"migration-helper-qa-sample-set":[],"class_list":["post-23310","journal_article","type-journal_article","status-publish","hentry","topic-cancer-and-cancer-screening","topic-health-and-health-care-inequality","topic-marginalized-populations"],"acf":{"citation":"Hansford RLW, Wilson B, Griffiths R, Mahar AL. J Intellect Disabil Res<\/em>. 2026; Feb 22 [Epub ahead of print].","source_url":"https:\/\/doi.org\/10.1111\/jir.70089","ices_scientist":[1312],"site":[6736],"research_program":[6741],"news_release":"","journal_article":"","atlas":"","research_report":"","infographic":"","video":"","downloads":null,"links":null,"sitecore_item_id":"","sitecore_item_name":"","sitecore_field_values":"","previous_url":""},"yoast_head":"\nICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study<\/title>\n<meta name=\"description\" content=\"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study\" \/>\n<meta property=\"og:description\" content=\"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/\" \/>\n<meta property=\"og:site_name\" content=\"ICES\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ICESOntario\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-23T14:10:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ices.on.ca\/wp-content\/uploads\/2024\/11\/ic-es-data-discovery-better-health-logo.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\\\/\",\"url\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\\\/\",\"name\":\"ICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#website\"},\"datePublished\":\"2026-02-22T14:05:59+00:00\",\"dateModified\":\"2026-02-23T14:10:39+00:00\",\"description\":\"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\\\/#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Journal Articles\",\"item\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/publications\\\/journal-articles\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/\",\"name\":\"ICES\",\"description\":\"POPULATION-BASED HEALTH RESEARCH THAT MAKES A DIFFERENCE\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#organization\"},\"alternateName\":\"Institute for Clinical Evaluative Sciences\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#organization\",\"name\":\"ICES\",\"alternateName\":\"Institute for Clinical Evaluative Sciences\",\"url\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.ices.on.ca\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/ices-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.ices.on.ca\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/ices-logo.png\",\"width\":\"676\",\"height\":\"618\",\"caption\":\"ICES\"},\"image\":{\"@id\":\"https:\\\/\\\/www.ices.on.ca\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/ICESOntario\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/ices-research-institute\\\/\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"ICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study","description":"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/","og_locale":"fr_FR","og_type":"article","og_title":"ICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study","og_description":"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.","og_url":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/","og_site_name":"ICES","article_publisher":"https:\/\/www.facebook.com\/ICESOntario\/","article_modified_time":"2026-02-23T14:10:39+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.ices.on.ca\/wp-content\/uploads\/2024\/11\/ic-es-data-discovery-better-health-logo.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/","url":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/","name":"ICES | Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study","isPartOf":{"@id":"https:\/\/www.ices.on.ca\/fr\/#website"},"datePublished":"2026-02-22T14:05:59+00:00","dateModified":"2026-02-23T14:10:39+00:00","description":"Background \u2014 People with intellectual or developmental disabilities (IDD) experience breast cancer care inequities relative to those without IDD.","breadcrumb":{"@id":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/#breadcrumb"},"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/factors-associated-with-the-receipt-of-female-breast-cancer-treatment-among-people-living-with-intellectual-or-developmental-disabilities\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.ices.on.ca\/fr\/"},{"@type":"ListItem","position":2,"name":"Journal Articles","item":"https:\/\/www.ices.on.ca\/fr\/publications\/journal-articles\/"},{"@type":"ListItem","position":3,"name":"Factors associated with the receipt of female breast cancer treatment among people living with intellectual or developmental disabilities: a population-based retrospective cohort study"}]},{"@type":"WebSite","@id":"https:\/\/www.ices.on.ca\/fr\/#website","url":"https:\/\/www.ices.on.ca\/fr\/","name":"ICES","description":"POPULATION-BASED HEALTH RESEARCH THAT MAKES A DIFFERENCE","publisher":{"@id":"https:\/\/www.ices.on.ca\/fr\/#organization"},"alternateName":"Institute for Clinical Evaluative Sciences","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.ices.on.ca\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/www.ices.on.ca\/fr\/#organization","name":"ICES","alternateName":"Institute for Clinical Evaluative Sciences","url":"https:\/\/www.ices.on.ca\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/www.ices.on.ca\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/www.ices.on.ca\/wp-content\/uploads\/2023\/04\/ices-logo.png","contentUrl":"https:\/\/www.ices.on.ca\/wp-content\/uploads\/2023\/04\/ices-logo.png","width":"676","height":"618","caption":"ICES"},"image":{"@id":"https:\/\/www.ices.on.ca\/fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/ICESOntario\/","https:\/\/www.linkedin.com\/company\/ices-research-institute\/"]}]}},"_links":{"self":[{"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/journal_article\/23310","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/journal_article"}],"about":[{"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/types\/journal_article"}],"acf:post":[{"embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/research_program\/6741"},{"embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/site\/6736"},{"embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/ices_scientist\/1312"}],"wp:attachment":[{"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/media?parent=23310"}],"wp:term":[{"taxonomy":"migration-helper-automated","embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/migration-helper-automated?post=23310"},{"taxonomy":"migration-manual","embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/migration-manual?post=23310"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/topic?post=23310"},{"taxonomy":"migration-helper-qa-sample-set","embeddable":true,"href":"https:\/\/www.ices.on.ca\/fr\/wp-json\/wp\/v2\/migration-helper-qa-sample-set?post=23310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}