Individual Study / CLSA

Canadian Longitudinal Study on Aging

Canadian Longitudinal Study on Aging

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Networks -
Datasets -
Variables -
Start Year
2002
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Members

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Investigators Contacts
  • Dr. Christina Wolfson
    McGill University
  • Dr. Susan Kirkland
    Dalhousie University
  • Dr. Parminder Raina
    McMaster University
  • Canadian Longitudinal Study on Aging
    National Coordinating Centre
  • Roxanne Cheeseman
    McMaster University
  • Canadian Longitudinal Study on Aging
    Statistical Analysis Centre
  • Dr. Ine Wauben
    McMaster University

Design

Study design
Cohort

Marker Paper

Raina PS, Wolfson C, Kirkland SA, Griffith LE, Oremus M, Patterson C, Tuokko H, Penning M, Balion CM, Hogan D, Wister A, Payette H, Shannon H, and Brazil K, The Canadian longitudinal study on aging (CLSA). Can J Aging, 2009. 28(3): p. 221-9.

PUBMED 19860977

Recruitment

Sources of Recruitment
  • Individuals

Number of participants

Number of participants
50,000
Number of participants with biosamples
30,000

Access

Availability of data and biosamples

Data
Biosamples
Other

Timeline

Populations

Selection Criteria
Minimum age
45
Maximum age
85
Newborns
Twins
Countries
  • Canada
Other criteria

Language: Individuals who are able to respond in either French or English.

Exclusion criteria: The CLSA uses the same exclusion criteria as the Statistics Canada Canadian Community Health Survey – Healthy Aging. Excluded from the study are:

  • 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) will be excluded at baseline. 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 Aboriginal settlements. However, individuals who are of First Nations descent who live outside reserves are included in the study.
  • Individuals with cognitive impairment at baseline

Recruitment

Sources of recruitment
  • General population
  • Participants from existing studies
General Population
  • Selected sample
  • Random digit dialing
Participants from existing studies
  • Statistics Canada Canadian Community Health Survey (CCHS) – Healthy Aging 4.2

Number of participants

Number of participants
21,242
Number of participants with biosamples
0
Data Collection Events
# Name Description Start End
0 Baseline (Tracking) 2011-09 2014-05
0 Maintaining contact baseline (Tracking) 2013-09 2015
0 Follow-Up One (Tracking) 2015-04 2017
Selection Criteria
Minimum age
45
Maximum age
85
Newborns
Twins
Countries
  • Canada
Territory

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

Other criteria

The exclusion criteria are as follows:

Individuals who are unable to respond in either French or English.

Cognitively impaired individuals at the time of recruitment.

The CLSA furthermore uses the same exclusion criteria as the Statistics Canada Canadian Community Health Survey - Healthy Aging 4.2:

  • Residents of the three territories.
  • Full-time members of the Canadian Armed Forces.
  • Individuals living in long-term care institutions (i.e., those providing 24-hour nursing care) will be excluded at baseline. 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 Aboriginal settlements. However, individuals who are of First Nations descent who live outside reserves are included in the study.

Recruitment

Sources of recruitment
  • General population
General Population
  • Selected sample
  • Random digit dialing

Number of participants

Number of participants
30,000
Number of participants with biosamples
30,000
Supplementary Information

30,000 is the target number of Comprehensive participants with samples, to be reached in 2015.

Data Collection Events
# Name Description Start End
0 Baseline (Comprehensive) 2012-05 2015-05
0 Maintaining contact baseline (Comprehensive) 2014-05 2016
0 Follow-up one (Comprehensive) 2015-05 2018