Leiden 85-plus Study
The objective of this study was to explore whether there is an effect of gender on cognitive function and whether differences in limited formal education explain differences on cognitive function between elderly women and men.
Overview
- Acronym
- LEIDEN85
- Investigators
-
- Contacts
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General Design
- Study design
- Cohort
- Start - End Year
- 1997 - 2015
- General Information on Follow Up (profile, frequency)
-
Participants born between 1912 and 1914 were recruited between September 1997 and September 1999 and followed-up yearly until they reached 90 years old.
- Recruitment Target
-
- Individuals
- Number of Participants
- 599
- Number of Participants with Biological Samples
- 559
- Supplementary Information
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Complete cause specific mortality data are available
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
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van Exel, E., Gussekloo, J., Houx, P., de Craen, A.J.M., Macfarlane, P.W., Bootsma-van der Wiel, A., Blauw, G.J., Westendorp, R.G.J. Atherosclerosis and cognitive impairment are linked in the elderly. The Leiden 85-plus Study. Atherosclerosis 2002;165:353-359.
PMID: 12417287
von Faber M, Bootsma-van der Wiel A, van Exel E, Gussekloo J, Lagaay AM, van Dongen E, Knook DL, van der Geest S, Westendorp RG Successful aging in the oldest old: Who can be characterized as successfully aged? . Arch Intern Med. 2001 Dec 10-24;161(22):2694-700.
PMID: 11732934
Marker Paper
A. Bootsma-van der Wiel, E., van Exel, E., de Craen, A.J.M., Gussekloo, J., Lagaay, A.M., Knook, D.L., Westendorp, R.G.J. A high response is not essential to prevent selection bias: Results from the Leiden 85-plus study. Journal of Clinical Epidemiology 2002;55:1119-1125
PUBMED 12507676Timeline
Population
LEIDEN85 - Population
Population is made of all subjects born between 1912 and 1914 (i.e. reaching their 85th birthday between September 1997 and September 1999) and living in Leiden, Netherlands. There were no selection criteria related to health or demographic characteristics.
Selection Criteria
- Minimum age
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85
- Maximum age
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85
- Countries
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- Netherlands
- Territory
- Leiden
Sources of Recruitment
- General Population
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- Selected sample
Sample Size
- Number of Participants
- 599
- Number of Participants with Biological Samples
- 559
- Supplementary information about number of participants
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Baseline: 599 participants
Follow-up Age 86: 510 participants
Follow-up Age 87: 445 participants
Follow-up Age 88: 391 participants
Follow-up Age 89: 330 participants
Follow-up Age 90: 277 participants
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | LEIDEN85 - Baseline |
|
|
1997 (September) | 1999 (September) |
| 1 | LEIDEN85 - Follow-up Age 86 |
|
|
1998 (September) | 2000 (September) |
| 2 | LEIDEN85 - Follow-up Age 87 |
|
|
1999 (September) | 2001 (September) |
| 3 | LEIDEN85 - Follow-up Age 88 |
|
|
2000 (September) | 2002 (September) |
| 4 | LEIDEN85 - Follow-up Age 89 |
|
|
2001 (September) | 2003 (September) |
| 5 | LEIDEN85 - Follow-up Age 90 |
|
|
2002 (September) | 2004 (September) |
| 6 | LEIDEN85 - Mortality Follow-up |
|
2002 (September) | 2015 (September) |
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
No Areas of Information Collected
No Scales Collected
Areas of Information Collected per per Population and Data Collection Event
No Areas of Information Collected
No Scales Collected
Networks
| Acronym | Name | Harmonization Initiatives | Individual Studies |
|---|
Last Update: 2023-08-10T18:19:21.455