Cognition, function, and prevalent dementia in centenarians and near-centenarians: An individual participant data (IPD) meta-analysis of 18 studies

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Leung, Y (Author) Other; Barzilai, N (Author) Other; Batko Szwaczka, A (Author) Other; Beker, N (Author) Other; Boerner, K (Author) Other; Brayne, C (Author) Other; Brodaty, H (Author) Other; Cheung, KSL (Author) Other; Corrada, MM (Author) Other; Crawford, JD (Author) Other; Galbussera, AA (Author) Other; Gondo, Y (Author) Other; Holstege, H (Author) Other; Hulsman, M (Author) Other; Ishioka, YL (Author) Other; Jopp, D (Author) Other; Kawas, CH (Author) Other; Kaye, J (Author) Other; Kochan, NA (Author) Other; Lau, BHP (Author) Other; Lipnicki, DM (Author) Other; Lo, JW (Author) Other; Lucca, U (Author) Other; Makkar, SR (Author) Other; Marcon, G (Author) Other; Martin, P (Author) Other; Meguro, K (Author) Other; Milman, S (Author) Other; Poon, LW (Author) Other; Recchia, A (Author) Other; Ribeiro, O (Author) Other; Riva, E (Author) Other; Rott, C (Author) Other; Sikkes, SA (Author) Other; Skoog, I (Author) Other; Stephan, B (Author) Other; Szewieczek, J (Author) Other; Teixeira, L (Author) ICBAS; Tettamanti, M (Author) Other; Wilczynski, K (Author) Other; Sachdev, P (Author) Other

Journal

Title: Alzheimers & Dementia

Vol. 19

Pages: 2265-2275

ISSN: 1552-5260

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 7 Citations

Other information

Authenticus ID: P-00X-MHP

DOI: 10.1002/alz.12828

Abstract (EN): IntroductionThere are limited data on prevalence of dementia in centenarians and near-centenarians (C/NC), its determinants, and whether the risk of dementia continues to rise beyond 100. MethodsParticipant-level data were obtained from 18 community-based studies (N = 4427) in 11 countries that included individuals >= 95 years. A harmonization protocol was applied to cognitive and functional impairments, and a meta-analysis was performed. ResultsThe mean age was 98.3 years (SD = 2.67); 79% were women. After adjusting for age, sex, and education, dementia prevalence was 53.2% in women and 45.5% in men, with risk continuing to increase with age. Education (OR 0.95;0.92-0.98) was protective, as was hypertension (odds ratio [OR] 0.51;0.35-0.74) in five studies. Dementia was not associated with diabetes, vision and hearing impairments, smoking, and body mass index (BMI). DiscussionAmong the exceptional old, dementia prevalence remains higher in the older participants. Education was protective against dementia, but other factors for dementia-free survival in C/NC remain to be understood.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11