The CLSA provides documents online to facilitate understanding of the study and how we are gathering and managing the data.


CLSA Protocol – Executive Summary
CLSA Protocol  Full Study Design and Baseline (2008)
CLSA Protocol – First Follow-up (2015)

The protocols listed are based on the applications CLSA submits to CIHR for each funding cycle. As the CLSA data collection progresses, occasionally, some measurements are changed. Updated versions of the protocols will be posted as necessary. Please refer to the Data Collection Tools section to review the specific questions and measurements gathered at each phase of the study.

Data Collection

Over the course of 20 years, the CLSA will be conducting full data collection every three years. At each major data collection event, the questionnaires and physical assessments remain largely the same for consistency, but there will be some additions to the data collection to further enhance the CLSA platform.


Physical Assessments

To ensure that physical assessment data are collected, processed, and stored in a consistent, professional, and structured manner at all CLSA sites across the country, Standard Operating Procedures (SOPs) help maintain the integrity of the data collection and data management processes.

View SOPs

Data Support Documentation

The documents included here provide essential information to facilitate understanding of the CLSA data. Researchers are strongly encouraged to review all of the documentation prior to preparing an application for data and/or sample access. More detailed information on the CLSA data is available through the DataPreview Portal.

View documents

Approved Project Summaries

Applicants for the CLSA data are asked to include a lay summary as part of their application. These summaries for each approved project are available to view.

View summaries

COVID-19 Study Data Dashboard

Findings from the CLSA COVID-19 Study are now available through an interactive dashboard.

Read More

Data Access

For detailed information on the data available and how to access it, visit the Data Access section.