CLSA by the Numbers

The CLSA will have a wide reach across Canada and we will collect vast amounts of information:

  • 51,338 participants
  • 20 years to complete the study
  • Up to 140,000 telephone interviews
  • Up to 210,000 home interviews
  • Up to 210,000 visits to data collection sites
  • Up to 5 million bio-specimen aliquots
  • Up to 300,000 follow-up telephone calls
  • Up to 126 million questions asked during telephone interviews
  • Up to 174 million data points collected during CLSA home interviews and visits to data collection sites
  • Up to 300 million anticipated data points that will form the CLSA research platform