Data Download

Data Products

Prior to accessing LASI-DAD public phenotype data, we request that the user register on the Gateway to Global Aging Data Website and sign a Data Use Agreement form (free of charge). Data and documentation can then be downloaded directly from the Gateway website.

• Cognition tests
• Informant Reports
• Geriatric assessment
• Venous blood specimens

• Cognition tests
• Informant Reports
• Geriatric assessment
• Venous blood specimens

• Harmonized Data
• Codebook
• Stata Creation Code

• Data file
• User guide

Please cite all information retrieved from the Gateway as follows:
Jinkook Lee, A.B. Dey, Pranali Khobragade, Joyita Banerjee, Albert Weerman, Sandy Chien, Peifeng Hu, Eileen Crimmins, Marco Angrisani, David Bloom, P. Arokiasamy, Kenneth Langa, Mathew Varghese (2019). Harmonized Diagnostic Assessment of Dementia for the Longitudinal Aging Study in India (LASI-DAD) Wave 1 Version A Data, doi:10.25549/h5wx-ay45. Produced and distributed by the University of Southern California with funding from the National Institute on Aging (R01AG051125, RF1AG055273, U01AG065958).

Jinkook Lee, A.B. Dey, Sarah Petrosyan, Pranali Khobragade, Albert Weerman, Sandy Chien, Joyita Banerjee, Alden Gross, Emma Nichols, Peifeng Hu, Eileen Crimmins, Marco Angrisani, Kenneth Langa, Mathew Varghese, Sharmistha Dey (2025). Harmonized Diagnostic Assessment of Dementia for the Longitudinal Aging Study in India (LASI-DAD) Wave 2 Version A Data, doi: . Produced and distributed by the University of Southern California with funding from the National Institute on Aging (R01AG051125, U01AG065958).

Genomics

Global Screening Array data is available for download through The National Institute on Aging Genetics of Alzheimer’s Disease Data Storage Site (NIAGADS) and includes the following:

• GWAS Data: Original genotype data from the GSA array, containing 1008 scans derived from 993 unique subjects (including 960 LASI-DAD subjects from the 100 Genomes Project)
• 1000 G Imputed Data: Genotype data imputed to the 1000G reference panel (phase 3 v5)
• TopMed Imputed Data: Genotype data imputed to the TOPMed reference panel (r2)

Whole Genome Sequencing data is available for download through The National Institute on Aging Genetics of Alzheimer’s Disease Data Storage Site (NIAGADS) as part of the Alzheimer’s Disease Sequencing Program Umbrella release 4.

Neuroimaging

Neuroimaging data for a subsample of Wave 1 respondents (N=137) are available through the Image and Data Archive (IDA) online database hosted by the Laboratory of Neuro Imaging (IDA) at the University of Southern California. All available MRI modalities are available to download in DICOM or NIFTI formats. Permission can be requested by signing and submitting a data use application.