Estimating prevalence of subjective cognitive decline in and across international cohort studies of aging: a COSMIC stud
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(2020) 12:167
RESEARCH
Open Access
Estimating prevalence of subjective cognitive decline in and across international cohort studies of aging: a COSMIC study Susanne Röhr1,2* , Alexander Pabst1, Steffi G. Riedel-Heller1, Frank Jessen3,4, Yuda Turana5, Yvonne S. Handajani6, Carol Brayne7, Fiona E. Matthews8,9, Blossom C. M. Stephan9, Richard B. Lipton10,11,12, Mindy J. Katz10, Cuiling Wang11, Maëlenn Guerchet13,14,15, Pierre-Marie Preux13,14,16, Pascal Mbelesso13,14,17, Karen Ritchie18,19, Marie-Laure Ancelin18, Isabelle Carrière18, Antonio Guaita20, Annalisa Davin20, Roberta Vaccaro20, Ki Woong Kim21,22,23, Ji Won Han21, Seung Wan Suh22, Suzana Shahar24, Normah C. Din25, Divya Vanoh26, Martin van Boxtel 27, Sebastian Köhler27, Mary Ganguli28,29,30, Erin P. Jacobsen28, Beth E. Snitz 29, Kaarin J. Anstey 31,32,33, Nicolas Cherbuin33, Shuzo Kumagai34, Sanmei Chen35, Kenji Narazaki36, Tze Pin Ng37, Qi Gao37, Xinyi Gwee 37, Henry Brodaty38,39, Nicole A. Kochan 38, Julian Trollor38,40, Antonio Lobo41,42, Raúl López-Antón41,43, Javier Santabárbara41,44, John D. Crawford 38, Darren M. Lipnicki 38, Perminder S. Sachdev 38,39 and for Cohort Studies of Memory in an International Consortium (COSMIC)
Abstract Background: Subjective cognitive decline (SCD) is recognized as a risk stage for Alzheimer’s disease (AD) and other dementias, but its prevalence is not well known. We aimed to use uniform criteria to better estimate SCD prevalence across international cohorts. Methods: We combined individual participant data for 16 cohorts from 15 countries (members of the COSMIC consortium) and used qualitative and quantitative (Item Response Theory/IRT) harmonization techniques to estimate SCD prevalence. (Continued on next page)
* Correspondence: [email protected] 1 Institute of Social Medicine, Occupational Health and Public Health (ISAP), Medical Faculty, University of Leipzig, Philipp-Rosenthal-Straße 55, 04103 Leipzig, Germany 2 Global Brain Health Institute (GBHI), Trinity College Dublin, Dublin, Ireland Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org
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