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Plasma pTau levels are known to be elevated in individuals with chronic kidney disease, which may require caution when corrected for renal function since it alters testing performance\u2014decreased sensitivity and increased specificity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objective<\/jats:title>\n                    <jats:p>We aimed to quantify how correcting for renal function affects BBM test performance.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We analyzed plasma pTau181 and pTau217 measured by multiple platforms, using data from our ongoing trial-ready cohort study in Japan and the ADNI study, in which approximately 30% of participants had mild or moderate renal impairment (eGFR\u2009&lt;\u200960). We compared models with and without renal correction to predict amyloid PET positivity status.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Compared to no correction, adjusting for renal function reduced sensitivity by 0.06\u20130.07 and increased specificity by 0.04\u20130.10. It also slightly increased positive predictive value, negative predictive value, balanced accuracy, and area under the curve\u2013each by less than 0.02. These shifts by correction were more pronounced when the participant prevalence of those with renal function was higher, though mainly for sensitivity and specificity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Our findings demonstrated that applying renal function correction decreases sensitivity and increases specificity of BBM test depending on the prevalence of renal impairment, without undermining overall prediction accuracy. They emphasize the need of considering the background characteristics of the target population when interpreting BBM performances in the real-world settings.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/13872877251350718","type":"journal-article","created":{"date-parts":[[2025,6,30]],"date-time":"2025-06-30T05:13:00Z","timestamp":1751260380000},"page":"954-963","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Effect of corrections for renal function on plasma phosphorylated tau performance for Alzheimer's disease"],"prefix":"10.1177","volume":"106","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4351-9526","authenticated-orcid":false,"given":"Kenichiro","family":"Sato","sequence":"first","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan"},{"name":"Unit for Early and Exploratory Clinical Development, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshiki","family":"Niimi","sequence":"additional","affiliation":[{"name":"Unit for Early and Exploratory Clinical Development, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan"},{"name":"Department of Healthcare Economics and Health Policy, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ryoko","family":"Ihara","sequence":"additional","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Atsushi","family":"Iwata","sequence":"additional","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Institute for Geriatrics and Gerontology, Itabashi-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazushi","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Division of Neurology, Internal Medicine, National Defense Medical College, Tokorozawa-shi, Saitama, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Iwatsubo","sequence":"additional","affiliation":[{"name":"Department of Neuropathology, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan"},{"name":"Unit for Early and Exploratory Clinical Development, The University of Tokyo Hospital, Bunkyo-ku, Tokyo, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"name":"for Alzheimer's Disease Neuroimaging Initiative","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2025,6,30]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(12)70291-0"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jalz.2018.02.018"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa2212948"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.2023.13239"},{"key":"e_1_3_4_6_2","doi-asserted-by":"publisher","DOI":"10.15252\/emmm.202114408"},{"key":"e_1_3_4_7_2","first-page":"434","article-title":"Population-based blood screening for preclinical Alzheimer's disease in a British birth cohort at age 70","volume":"144","author":"Keshavan A","year":"2021","unstructured":"Keshavan A, Pannee J, Karikari TK, et al. 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