Data Access

DataPreview Portal

Visit our DataPreview Portal to learn more about the data collected by the CLSA, view variables that are currently available, and see the overview of the timeline for the 20-year study. Currently, the CLSA DataPreview Portal is only available in English.

DataPreview Portal

Data Release Timelines

As a longitudinal study, the CLSA incorporates several major data collection events throughout its 20 years, and new data will be released as they become available. You can expect data to be released approximately 6 to 12 months following completion of a major data collection event.

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Data Access Application Process

Once you've familiarized yourself with the CLSA and determined that the data could be useful to your research, you will need to submit an application according to the established process.

How to apply

Data Access Application Documents

These documents provide more information and guidance on the application. 

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Data and Biospecimens

The CLSA uses several methods for collecting detailed data from participants. Click on the link below to view charts that show all of the modules covered in the telephone interviews, the in-home interviews, the assessments conducted at the Data Collection Sites, and the biological samples collected.

Modules charts


If you are new to the DataPreview Portal, or need to know more about what you can apply for and how, we suggest you refer to our Frequently Asked Questions.