<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-14T03:32:59Z</responseDate><request verb="GetRecord" identifier="oai:repisalud.isciii.es:20.500.12105/25890" metadataPrefix="marc">https://repisalud.isciii.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:repisalud.isciii.es:20.500.12105/25890</identifier><datestamp>2025-12-18T12:52:56Z</datestamp><setSpec>com_20.500.12105_19604</setSpec><setSpec>com_20.500.12105_2051</setSpec><setSpec>col_20.500.12105_19605</setSpec></header><metadata><record xmlns="http://www.loc.gov/MARC21/slim" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/MARC21/slim http://www.loc.gov/standards/marcxml/schema/MARC21slim.xsd">
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      <subfield code="a">Mora-Ayestaran, Nerea</subfield>
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      <subfield code="a">Dispenzieri, Angela</subfield>
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      <subfield code="a">Kristen, Arnt V</subfield>
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      <subfield code="a">Maurer, Mathew S</subfield>
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      <subfield code="a">Diemberger, Igor</subfield>
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      <subfield code="a">Drachman, Brian M</subfield>
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      <subfield code="a">Grogan, Martha</subfield>
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      <subfield code="a">Gupta, Pritam</subfield>
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      <subfield code="a">Glass, Oliver</subfield>
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      <subfield code="a">Amass, Leslie</subfield>
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      <subfield code="a">Garcia-Pavia, Pablo</subfield>
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      <subfield code="c">2024-08</subfield>
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      <subfield code="a">Wild-type transthyretin amyloidosis (ATTRwt amyloidosis) is primarily diagnosed in elderly men but diagnoses in younger patients and women have recently increased. The purpose of this study was to examine age- and sex-related differences in patients with ATTRwt amyloidosis enrolled in the THAOS (Transthyretin Amyloidosis Outcomes Survey). THAOS was a global, longitudinal, observational survey of patients with transthyretin amyloidosis, including both hereditary and wild-type disease, and asymptomatic carriers of pathogenic transthyretin gene variants. Patient characteristics at enrollment were analyzed by age at enrollment and sex (data cutoff date: August 1, 2022). Of 1,251 patients with ATTRwt amyloidosis, 13.7%, 49.1%, 34.5%, and 2.8% were aged &lt;70 years, 70 to 79 years, 80 to 89 years, and ≥90 years, respectively. The proportion of women increased with age, from 4.1% in patients aged &lt;70 years to 14.3% in patients aged ≥90 years. In the respective age groups, median time from symptom onset to diagnosis overall (male, female) was 1.7 (1.3, 5.2), 2.0 (2.0, 2.2), 1.8 (1.9, 0.8), and 0.7 (0.6, 2.5) years. A Karnofsky Performance Status score ≤70 was observed in 17.1%, 30.1%, 46.1%, and 44.4% of patients aged &lt;70 years, 70 to 79 years, 80 to 89 years, and ≥90 years, respectively. In this THAOS analysis of patients with ATTRwt amyloidosis, patients were diagnosed an average of 2 years after symptom onset, with the greatest diagnostic delay in women aged &lt;70 years at 5 years. Patients were predominantly men, but the proportion of women increased with age. A substantial proportion of patients had significant functional impairment regardless of age. (Transthyretin Amyloidosis Outcome Survey [THAOS]; NCT00628745).</subfield>
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      <subfield code="a">JACC Adv. 2024 Jul 12;3(8):101086.</subfield>
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      <subfield code="a">Journal of the American College of Cardiology Advances</subfield>
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      <subfield code="a">39105117</subfield>
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      <subfield code="a">https://hdl.handle.net/20.500.12105/25890</subfield>
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      <subfield code="a">amyloid</subfield>
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      <subfield code="a">sex differences</subfield>
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      <subfield code="a">Age- and Sex-Related Differences in Patients With Wild-Type Transthyretin Amyloidosis: Insights From THAOS.</subfield>
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