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Mortality has risen sharply over two decades, and African Americans face higher ADRD risk, partly linked to comorbid hypertension, yet prior work has not quantified cost and utilization contributions. Using linked SC Medicaid claims and the SC Alzheimer’s Disease Registry (ages 65+, 2005–2021), Blinder-Oaxaca decomposition quantifies between-race differences in inpatient, outpatient, emergency, and medication expenditures, with 2024-dollar cost adjustment.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/antihypertensive-drug-use-a-racial-decomposition-analysis-based-on-the-largest-alzheimers-disease-registry-data/426632/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/antihypertensive-drug-use-a-racial-decomposition-analysis-based-on-the-largest-alzheimers-disease-registry-data/426632.png","ImageObject",300,407,{"name":92,"@type":93},"Muffet","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-22","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":34},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What data sources are used to study antihypertensive drug use and racial disparities?","Question",{"text":112,"@type":113},"The study links South Carolina Medicaid claims with the South Carolina Alzheimer’s Disease Registry, leveraging statewide ADRD registry records.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Which analysis method quantifies differences between racial groups?",{"text":117,"@type":113},"It applies the Blinder-Oaxaca decomposition method to measure how much racial disparities explain variation in expenditures and medication use.",{"name":119,"@type":110,"acceptedAnswer":120},"What proportion of cost and medication disparities is attributed to racial differences?",{"text":121,"@type":113},"Racial differences explain 23.52%–34.37% of disparities in inpatient, outpatient, and medication expenditures, and 28.95% of antihypertensive medication use differences.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},426632,1790746703,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":81},962090768927,"https://ap-avatar.wpscdn.com/davatar_085a072bc5b1113ac321206ff7593b45","SESSION 4265 (PAPER)  ALZHEIMER’S DISEASE AND OTHER RELATED DEMENTIAS: INTERVENTIONS AND HEALTH  \nOUTCOMES  \nAbstract citation ID: igaf122.1838  \nANTIHYPERTENSIVE DRUG USE: A RACIAL DECOMPOSITION ANALYSIS BASED ON THE LARGEST ALZHEIMER’S DISEASE REGISTRY DATA  \nKevin Lu1, Xiangxiang Jiang1, and Gang Lv2, 1. University of South Carolina, Columbia, South Carolina, United States, 2. Chinese PLA General Hospital, Beijing, Beijing, China (People’s Republic)  \nBackground: Mortality from Alzheimer’s Disease and Related Dementias (ADRD) has more than doubled in the past two decades, with South Carolina leading the nation in crude ADRD death rates. African Americans face a disproportionately higher risk of ADRD, with widening racial disparities, partly driven by comorbid conditions like hypertension. However, limited research has quantified the contribution of racial disparities to healthcare costs and utilization. This study addresses this gap by analyzing racial differences in healthcare expenditures, utilization, and antihypertensive medication (AHM) use among South Carolina Medicaid beneficiaries with ADRD, leveraging data from the South Carolina Alzheimer’s Disease (AD) Registry. Methods: A longitudinal analysis was conducted using SC Medicaid claims data linked to the SC AD Registry, the nation’s oldest and most comprehensive statewide ADRD database. The study included ADRD patients aged 65 and older (2005–2021). Healthcare costs were adjusted to 2024 dollars. The Blinder-Oaxaca decomposition method was used to quantify racial disparities in inpatient, outpatient, emergency room, and medication expenditures. Results: Among 7,865 ADRD Medicaid beneficiaries, racial differences accounted for 23.52%–34.37% of disparities in inpatient, outpatient, and medication expenditures (P \u003C0.001). Racial disparities explained 28.95%(P \u003C0.001) ofAHM use differences. Conclusion: Racial disparities significantly contribute to variations in healthcare costs, utilization, and medication use among ADRD patients. Addressing these disparities is critical for ensuring equitable access to care and improving outcomes.","cbCainHUegqMRgtG","https://ap.wps.com/l/cbCainHUegqMRgtG","pdf",54519,"English","# Background\n## Methods\n## Results\n## Conclusion","[{\"question\":\"What data sources are used to study antihypertensive drug use and racial disparities?\",\"answer\":\"The study links South Carolina Medicaid claims with the South Carolina Alzheimer’s Disease Registry, leveraging statewide ADRD registry records.\"},{\"question\":\"Which analysis method quantifies differences between racial groups?\",\"answer\":\"It applies the Blinder-Oaxaca decomposition method to measure how much racial disparities explain variation in expenditures and medication use.\"},{\"question\":\"What proportion of cost and medication disparities is attributed to racial differences?\",\"answer\":\"Racial differences explain 23.52%–34.37% of disparities in inpatient, outpatient, and medication expenditures, and 28.95% of antihypertensive medication use differences.\"}]","ANTIHYPERTENSIVE DRUG USE - A RACIAL DECOMPOSITION ANALYSIS BASED ON THE LARGEST ALZHEIMER’S DISEASE REGISTRY DATA | PDF",1790641224]