Canadian Longitudinal Study on Aging

Overview

Acronym
CLSA
Website
CLSA
Investigators
  • Dr. Parminder Raina

    McMaster University

  • Dr. Susan Kirkland

    Dalhousie University

  • Dr. Christina Wolfson

    McGill University

Contacts
  • Data Access Inquiries
  • Dr. Ine Wauben

    McMaster University

General Design

Study design
Cohort
Start Year
2011
General Information on Follow Up (profile, frequency)
First-follow-up was in 2015-2018 and the second one in 2018-2021. Each participant is re-contacted every 3 years and will be followed for at least 20 years or until death.
Recruitment Target
  • Individuals
Number of Participants
51,338
Number of Participants with Biological Samples
30,000

Access

Availability of data and biosamples

Possible Access to Data
Possible Access to Biosamples
Other
  • By contacting the study representative: Data Access Inquiries
General inquiries: info@clsa-elcv.ca

Marker Paper

Raina PS, Wolfson C, Kirkland SA, et al. The Canadian longitudinal study on aging (CLSA). Can J Aging, 2009. 28(3): p. 221-9.

PUBMED 19860977

Supplementary Information

Raina P, Wolfson C., Kirkland S, Griffith L.E., et al. (2019) Cohort profile: The Canadian Longitudinal Study on Aging (CLSA). International Journal of Epidemiology, Volume 48, Issue 6, 1752-1753j https://doi.org/10.1093/ije/dyz173

Timeline

Populations

CLSA - Tracking

Selection Criteria

Minimum age
45
Maximum age
85
Countries
  • Canada
Territory
All 10 provinces
Other Criteria
Inclusion: Individuals who are able to respond in either French or English, and able to give consent.
Exclusion (same exclusion criteria as the Statistics Canada Canadian Community Health Survey – Healthy Aging):
  • Residents of the three territories
  • Full-time members of the Canadian Forces
  • Individuals living in long-term care institutions (i.e., those providing 24-hour nursing care). However, those living in households and transitional housing arrangements (e.g., seniors’ residences, in which only minimal care is provided) will be included. CLSA cohort participants who become institutionalized during the course of the study will continue to be followed either through personal or proxy interview.
  • Persons living on reserves and other Indigenous settlements. However, individuals who are of First Nations, Metis and Inuit descent who live outside reserves are included in the study.

Sources of Recruitment

General Population
  • Random digit dialing
Specific Population
  • Other specific population : Provincial registries
Participants from Existing Studies
  • Canadian Community Health Survey (CCHS) - Healthy Aging
Supplementary Information

The Canadian Community Health Survey (CCHS) cycle 4.2 was used as the recruitment vehicle for the telephone interview cohort.

Sample Size

Number of Participants
21,241
CLSA - Comprehensive

Selection Criteria

Minimum age
45
Maximum age
85
Countries
  • Canada
Territory

Vancouver, Victoria, Surrey, Calgary, Winnipeg, Hamilton, Ottawa, Montréal, Sherbrooke, Halifax, and St. John’s

Other Criteria
Inclusion: Individuals who are able to respond in either French or English, and able to give consent.
Exclusion (same exclusion criteria as the Statistics Canada Canadian Community Health Survey – Healthy Aging):
  • Residents of the three territories
  • Full-time members of the Canadian Forces
  • Individuals living in long-term care institutions (i.e., those providing 24-hour nursing care). However, those living in households and transitional housing arrangements (e.g., seniors’ residences, in which only minimal care is provided) will be included. CLSA cohort participants who become institutionalized during the course of the study will continue to be followed either through personal or proxy interview.
  • Persons living on reserves and other Indigenous settlements. However, individuals who are of First Nations, Metis and Inuit descent who live outside reserves are included in the study.

Sources of Recruitment

General Population
  • Selected sample
  • Random digit dialing
Specific Population
  • Other specific population : Provincial registries
Supplementary Information

Provincial health registration databases were used for recruitment of the comprehensive cohort. Individuals residing within a 25-50 kilometer radius of the 11 Data collection sites (Vancouver, Victoria, Surrey, Calgary, Winnipeg, Hamilton, Ottawa, Montreal, Sherbrooke, Halifax, and St. John’s) were also recruited.

Sample Size

Number of Participants
30,097
Number of Participants with Biological Samples
30,000

Individual Studies Included

Acronym Name Study design Participants Countries

Harmonization Projects Included

Acronym Name

Networks

Acronym Name Studies

Datasets

Name Type Data Collection Events Variables
Last Update: 2021-08-06 16:23