{"id":16922,"date":"2025-10-27T14:14:34","date_gmt":"2025-10-27T18:14:34","guid":{"rendered":"https:\/\/ccna-ccnv.ca\/?post_type=ccna_publication&#038;p=16922"},"modified":"2025-10-27T14:14:34","modified_gmt":"2025-10-27T18:14:34","slug":"using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia","status":"publish","type":"ccna_publication","link":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/","title":{"rendered":"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia"},"content":{"rendered":"<h2>Abstract<\/h2>\n<div id=\"abstract\" class=\"abstract\">\n<div id=\"eng-abstract\" class=\"abstract-content selected\">\n<p><strong class=\"sub-title\">Background and objectives:\u00a0<\/strong>Older adults living with dementia are a heterogeneous group, which can make studying optimal medication management challenging. Unsupervised machine learning is a group of computing methods that rely on unlabeled data-that is, where the algorithm itself is discovering patterns without the need for researchers to label the data with a known outcome. These methods may help us to better understand complex prescribing patterns in this population. The objective of our study was to use clustering methods to determine whether common prescribing clusters exist in older adults newly identified as living with dementia in Ontario, Canada and to examine the association between individual clinical and demographic characteristics and those clusters.<\/p>\n<p><strong class=\"sub-title\">Methods:\u00a0<\/strong>Data were derived from population-based health administrative databases, including medication dispensation data. The hierarchical clustering algorithm started with each individual and merged individuals with the most similar prescribing patterns into a group, continuing this process stepwise until only one cluster remained. The optimal number of clusters was selected through clinical review and fit statistics. We examined the association between individual characteristics and prescribing clusters using bivariate multinomial models.<\/p>\n<p><strong class=\"sub-title\">Results:\u00a0<\/strong>In 99,046 individuals living with new dementia, we identified six prevalent clusters of individuals with common medication subclass patterns: higher dispensation of angiotensin-converting enzyme-specific cardiovascular (22.6% of the population), central nervous system-active (21.3%), hypothyroidism (22.9%), respiratory (3.9%), and angiotensin receptor blocker-specific cardiovascular (6.1%), as well as a group with lower dispensation of medications in general (23.1%). Specific demographic, clinical, and health-service-use characteristics were associated with assigned clusters.<\/p>\n<p><strong class=\"sub-title\">Conclusions:\u00a0<\/strong>Within individuals living with dementia, prescribing clusters reflected meaningful differences in clinical and demographic characteristics. The results suggest that applying clustering methods to pharmacological data may be useful in estimating complex comorbidity patterns to better describe a heterogeneous population of people living with dementia. Future studies could examine whether these clusters better predict health service use, disease progression, or medication-related adverse events compared with other measures.<\/p>\n<\/div>\n<\/div>\n<div id=\"plain-language-summary\" class=\"abstract\">\n<h2 class=\"title\">Plain language summary<\/h2>\n<p>Older adults living with dementia are often prescribed many medications to manage both dementia and other health conditions that exist at the same time. We were interested in exploring whether unsupervised machine learning methods would identify groups of people who were taking similar medications and applied a computing algorithm called hiearachial clustering to a dataset of medications that had been dispensed to older adults living with dementia in Ontario, Canada. This resulted in six prescribing clusters which reflect underlying differences in comorbidity profiles.<\/p>\n<\/div>\n","protected":false},"author":14,"featured_media":0,"template":"","meta":{"_acf_changed":false},"studies-relation":[],"class_list":["post-16922","ccna_publication","type-ccna_publication","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV\" \/>\n<meta property=\"og:description\" content=\"Abstract Background and objectives:\u00a0Older adults living with dementia are a ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/\" \/>\n<meta property=\"og:site_name\" content=\"CCNA - CCNV\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/CCNA.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:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/\",\"url\":\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/\",\"name\":\"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV\",\"isPartOf\":{\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#website\"},\"datePublished\":\"2025-10-27T18:14:34+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/#breadcrumb\"},\"inLanguage\":\"fr-CA\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/ccna-ccnv.ca\/fr\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#website\",\"url\":\"https:\/\/ccna-ccnv.ca\/fr\/\",\"name\":\"Canadian Consortium on Neurodegeneration in Aging\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#organization\"},\"alternateName\":\"CCNA - CCNV\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/ccna-ccnv.ca\/fr\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-CA\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#organization\",\"name\":\"Canadian Consortium on Neurodegeneration in Aging\",\"alternateName\":\"CCNA - CCNV\",\"url\":\"https:\/\/ccna-ccnv.ca\/fr\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-CA\",\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/ccna-logo-on-white-background.jpg\",\"contentUrl\":\"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/ccna-logo-on-white-background.jpg\",\"width\":696,\"height\":696,\"caption\":\"Canadian Consortium on Neurodegeneration in Aging\"},\"image\":{\"@id\":\"https:\/\/ccna-ccnv.ca\/fr\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV","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:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/","og_locale":"fr_CA","og_type":"article","og_title":"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV","og_description":"Abstract Background and objectives:\u00a0Older adults living with dementia are a ...","og_url":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/","og_site_name":"CCNA - CCNV","og_image":[{"width":1200,"height":675,"url":"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/CCNA.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/","url":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/","name":"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia - CCNA - CCNV","isPartOf":{"@id":"https:\/\/ccna-ccnv.ca\/fr\/#website"},"datePublished":"2025-10-27T18:14:34+00:00","breadcrumb":{"@id":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/#breadcrumb"},"inLanguage":"fr-CA","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/ccna-ccnv.ca\/fr\/ccna_publication\/using-medication-dispensation-data-to-identify-clusters-with-similar-prescribing-patterns-in-older-adults-living-with-dementia\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ccna-ccnv.ca\/fr\/"},{"@type":"ListItem","position":2,"name":"Using medication dispensation data to identify clusters with similar prescribing patterns in older adults living with dementia"}]},{"@type":"WebSite","@id":"https:\/\/ccna-ccnv.ca\/fr\/#website","url":"https:\/\/ccna-ccnv.ca\/fr\/","name":"Canadian Consortium on Neurodegeneration in Aging","description":"","publisher":{"@id":"https:\/\/ccna-ccnv.ca\/fr\/#organization"},"alternateName":"CCNA - CCNV","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ccna-ccnv.ca\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-CA"},{"@type":"Organization","@id":"https:\/\/ccna-ccnv.ca\/fr\/#organization","name":"Canadian Consortium on Neurodegeneration in Aging","alternateName":"CCNA - CCNV","url":"https:\/\/ccna-ccnv.ca\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-CA","@id":"https:\/\/ccna-ccnv.ca\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/ccna-logo-on-white-background.jpg","contentUrl":"https:\/\/ccna-ccnv.ca\/wp-content\/uploads\/2025\/01\/ccna-logo-on-white-background.jpg","width":696,"height":696,"caption":"Canadian Consortium on Neurodegeneration in Aging"},"image":{"@id":"https:\/\/ccna-ccnv.ca\/fr\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/ccna_publication\/16922","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/ccna_publication"}],"about":[{"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/types\/ccna_publication"}],"author":[{"embeddable":true,"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/users\/14"}],"wp:attachment":[{"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/media?parent=16922"}],"wp:term":[{"taxonomy":"studies-relation","embeddable":true,"href":"https:\/\/ccna-ccnv.ca\/fr\/wp-json\/wp\/v2\/studies-relation?post=16922"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}