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1.
Sci Data ; 10(1): 45, 2023 01 20.
Artículo en Inglés | MEDLINE | ID: mdl-36670106

RESUMEN

The Harmonized Diagnostic Assessment of Dementia for the Longitudinal Aging Study in India (LASI-DAD) is a nationally representative in-depth study of cognitive aging and dementia. We present a publicly available dataset of harmonized cognitive measures of 4,096 adults 60 years of age and older in India, collected across 18 states and union territories. Blood samples were obtained to carry out whole blood and serum-based assays. Results are included in a venous blood specimen datafile that can be linked to the Harmonized LASI-DAD dataset. A global screening array of 960 LASI-DAD respondents is also publicly available for download, in addition to neuroimaging data on 137 LASI-DAD participants. Altogether, these datasets provide comprehensive information on older adults in India that allow researchers to further understand risk factors associated with cognitive impairment and dementia.


Asunto(s)
Disfunción Cognitiva , Demencia , Anciano , Humanos , Envejecimiento , Demencia/genética , Genómica , Estudios Longitudinales , India
2.
Biodemography Soc Biol ; 65(3): 189-213, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32727279

RESUMEN

The Harmonized Diagnostic Assessment of Dementia for Longitudinal Aging Study in India (LASI-DAD) is a population-representative, prospective cohort study of late-life cognition and dementia. It is part of an ongoing international research collaboration that aims to measure and understand cognitive impairment and dementia risk by collecting a set of cognitive and neuropsychological assessments and informant reports, referred to as the Harmonized Cognitive Assessment Protocol (HCAP). LASI-DAD provides nationally representative data drawn from a subsample of the ongoing Longitudinal Aging Study in India (LASI). One of LASI-DAD's distinctive features is its rich geriatric assessment, including the collection of venous blood samples and brain imaging data for a subsample of respondents. In this paper, we discuss the methodological considerations of developing and implementing the HCAP protocol in India. The lessons we learned from translating and applying the HCAP protocol in an environment where illiteracy and innumeracy are high will provide important insights to researchers interested in measuring and collecting data on late-life cognition and dementia in developing countries. We further developed an innovative blood management system that enables us to follow the collection, transportation, assay, and storage of samples. Such innovation can benefit other population surveys collecting biomarker data.


Asunto(s)
Envejecimiento , Demencia/diagnóstico , Anciano , Disfunción Cognitiva/diagnóstico , Disfunción Cognitiva/fisiopatología , Demencia/clasificación , Demencia/genética , Femenino , Humanos , India , Estudios Longitudinales , Imagen por Resonancia Magnética/métodos , Masculino , Pruebas Neuropsicológicas/estadística & datos numéricos , Estudios Prospectivos , Factores de Riesgo
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