Korean Longitudinal Study on Cognitive Aging and Dementia
The Korean Longitudinal Study on Cognitive Aging and Dementia (KLOSCAD) is the first nationwide multi-center population-based prospective cohort study in South Korea for investigating the epidemiology, biopsychosocial risk factors, and outcomes of normal cognitive aging and various dementing illnesses.
The objectives of the KLOSCAD are first to estimate the epidemiology of dementia and related disorders in South Korea, second to explore the diagnostic markers of dementia and establish their normative data in elderly Koreans, third to propose optimal strategies for preventing and managing dementia in Koreans, and finally to provide evidence for developing cost-effective dementia policies in South Korea.
Overview
- Acronym
- KLOSCAD
- Investigators
-
- Contacts
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General Design
- Study design
- Cohort
- Start - End Year
- 2009 -
- General Information on Follow Up (profile, frequency)
-
After baseline assessment, participants are followed-up every two years.
- Recruitment Target
-
- Individuals
- Number of Participants
- 6,818
- Number of Participants with Biological Samples
- 6,814
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
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Marker Papers
Han JW, Kim TH, Kwak KP, Kim K, Kim BJ, Kim SG, Kim JL, Kim TH, Moon SW, Park JY, Park JH. Overview of the Korean Longitudinal Study on Cognitive Aging and Dementia. Psychiatry investigation. 2018 Aug;15(8):767.
PUBMED 30086611Timeline
Population
Selection Criteria
- Minimum age
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60
- Countries
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- South Korea
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
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Random selection of participants was based on residential rosters.
Sample Size
- Number of Participants
- 6,818
- Number of Participants with Biological Samples
- 6,818
- Supplementary information about number of participants
-
Baseline: 6,818 participants
1st Follow-up: 5,131 participants
2nd Follow-up: 4,181 participants
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | KLOSCAD - Baseline |
|
|
2010 (November) | 2012 (October) |
| 1 | KLOSCAD - Follow-Up 1 |
|
|
2012 (November) | 2014 (October) |
| 2 | KLOSCAD - Follow-Up 2 |
|
|
2014 (November) | 2016 (October) |
| 3 | KLOSCAD - Follow-Up 3 |
|
|
2016 (November) | 2018 (October) |
Participating Studies
| Acronym | Name | Study design | Countries |
|---|
Harmonization Initiatives Included
| Acronym | Name |
|---|
Datasets
| Name | Data Collection Events | Variables |
|---|
Areas of Information Collected
- Socio-demographic and economic characteristics
- Death
- Lifestyle and behaviours
- Physical measures and assessments
- Birth, pregnancy and reproductive health history
- Laboratory measures
- Perception of health, quality of life, development and functional limitations
- Cognition, personality and psychological measures and assessments
- Diseases
- Life events, life plans, beliefs and values
- Symptoms and signs
- Preschool, school and work life
- Medication and supplements
- Social environment and relationships
- Non-pharmacological interventions
- Physical environment
- Health and community care services utilization
- Administrative information
Variables Content Summary
Areas of Information Collected
Areas of Information Collected per per Population and Data Collection Event
Networks
| Acronym | Name | Harmonization Initiatives | Individual Studies |
|---|