Canberra Longitudinal Study
The Canberra Longitudinal Study is a large epidemiological survey of mental health and cognitive functioning in a community based sample living in or near Canberra, Australia. The study aimed to investigate the epidemiology of cognitive decline, dementia and depressive disorders/symptoms over time and to identify factors influencing the course of cognitive decline and depression.
- Start Year
- 1990
- End Year
- 2002
Visit CLS
| Investigators | Contacts |
|---|---|
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Design
- Study design
- Cohort
- Follow Up
-
The study commenced in 1990, with subsequent waves in 1994, 1998 and 2002.
Marker Paper
Christensen, H., Mackinnon, A., Jorm, A. F., et al., (2004). The Canberra Longitudinal Study: Design, aims, methodology, outcomes, and recent empirical investigations. Aging, Neuropsychology, and Cognition, 11, 169‑195.
Recruitment
- Sources of Recruitment
-
- Individuals
Number of participants
- Number of participants
- 1,045
- Number of participants with biosamples
- 0
Access
Availability of data and biosamples
| Data | |
| Biosamples | |
| Other |
Timeline
Populations
CLS population consist of people aged 70 and over, living in the community and residential care facilities of the Canberra/Queanbeyan region in 1990.
Selection Criteria
- Minimum age
-
70
- Newborns
- Twins
- Countries
-
- Australia
- Territory
-
Canberra/Queanbeyan region
Recruitment
- Sources of recruitment
-
- General population
- General Population
-
- Selected sample
- Supplementary Information
-
Participants were randomly selected from the Canberra and Queanbeyan electoral rolls.
Number of participants
- Number of participants
- 896
- Number of participants with biosamples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
CLS wave 1
|
Baseline assessments comprised of The Canberra Interview for the Elderly (CIE) which records diagnoses of dementia and contains the MMSE, National Adult Reading Test (a test of ... |
1990-07 | 1990-09 |
| 0 |
CLS wave 2
|
First follow-up of participants. Same methods as the baseline assessments. |
1994-06 | 1995-01 |
| 0 |
CLS wave 3
|
Second follow-up of participants. Same methods as the baseline assessments. |
1998-07 | 1998-12 |
| 0 |
CLS wave 4
|
Third follow-up of participants. Same methods as the baseline assessments. |
2002 | 2002 |
The sample consist of Individuals living in nursing homes and oversampled individuals aged 90 years of age and over.
Selection Criteria
- Minimum age
-
70
- Newborns
- Twins
- Countries
-
- Australia
- Territory
-
Canberra/Queanbeyan region
Recruitment
- Sources of recruitment
-
- Specific population
- Specific Population
-
-
Other specific population :
Living in nursing homes
-
Other specific population :
Number of participants
- Number of participants
- 100
- Number of participants with biosamples
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
CLS wave 1
|
Baseline assessments comprised of The Canberra Interview for the Elderly (CIE) which records diagnoses of dementia and contains the MMSE, National Adult Reading Test (a test of ... |
1990-07 | 1990-09 |
| 0 |
CLS wave 2
|
First follow-up of participants. Same methods as the baseline assessments. |
1994-06 | 1995-01 |
| 0 |
CLS wave 3
|
Second follow-up of participants. Same methods as the baseline assessments. |
1998-07 | 1998-12 |
| 0 |
CLS wave 4
|
Third follow-up of participants. Same methods as the baseline assessments. |
2002 | 2002 |