Lausanne Cohort 65+
The objectives of this study are to:
* Contribute to the epidemiological and public health research on ageing with a particular focus on the determinants, manifestations and outcomes of frailty.
* Provide continuous health indicators to offer guidance on public health actions to the Public Health Department of the canton Vaud.
* Conduct geriatric research based on a broad range of measures that cover both self-reported and performance-based assessments.
Overview
- Acronym
- Lc65
- Website
- Lc65
- Investigators
-
- Contacts
-
General Design
- Study design
- Cohort
- Start - End Year
- 2004 -
- General Information on Follow Up (profile, frequency)
-
After baseline, participants were followed-up with questionnaires each year and at an in-person interview and an examination every third year.
- Recruitment Target
-
- Individuals
- Number of Participants
- 4,731
Marker Papers
Henchoz Y, Blanco JM, Fustinoni S, Nanchen D, Bula C, Seematter-Bagnoud L, von Gunten A, Santos-Eggimann B. Cohort Profile: The Lausanne cohort 65+ (Lc65+). Int J Epidemiol. Online ahead of print.
PUBMED 34849932Santos-Eggimann B, Karmaniola A, Seematter-Bagnoud L, et al. The Lausanne cohort Lc65+: a population-based prospective study of the manifestations, determinants and outcomes of frailty. BMC Geriatr 2008; 8: 20.
PUBMED 18706113Timeline
Populations
Lc65 - Sample 1
The population is composed of non-institutionalized males and females aged 65 to 70 in 2004 (birth year 1934 to 1938).
Selection Criteria
- Minimum age
-
65
- Maximum age
-
70
- Countries
-
- Switzerland
- Territory
- Lausanne
- Health Status
-
- Individuals unable to respond due to cognitive impairment were excluded.
- Other Criteria
- Institutionalized individuals were excluded.
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
The first stage of sampling and recruitment in the Lc65+ study took place in 2004. Participants were selected by simple random sampling of city residents comprising 3236 individuals born between 1934 and 1938 extracted by the Population Office in April 2003. In March 2004, all selected individuals received a support letter from the Surgeon General of the Canton of Vaud, followed one week later by a mailing including a presentation of the study, an initial self-administered questionnaire, and a stamped return envelope. Non-respondents received two follow-up mailshots with the same contents. The last mailing included an anonymous form for reporting refusals and corresponding reasons.
Sample Size
- Number of Participants
- 1,564
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | Lc65 - Sample 1 - Baseline |
|
2004 | 2005 | |
| 2 | Lc65 - Sample 1 - Follow-up 1 |
|
2006 | 2006 | |
| 3 | Lc65 - Sample 1 - Follow-up 2 |
|
2007 | 2007 | |
| 4 | Lc65 - Sample 1 - Follow-up 3 |
|
2008 | 2008 | |
| 5 | Lc65 - Sample 1 - Follow-up 4 |
|
2009 | 2009 | |
| 6 | Lc65 - Sample 1 - Follow-up 5 |
|
2010 | 2010 | |
| 7 | Lc65 - Sample 1 - Follow-up 6 |
|
2011 | 2011 | |
| 8 | Lc65 - Sample 1 - Follow-up 7 |
|
2012 | 2012 | |
| 9 | Lc65 - Sample 1 - Follow-up 8 |
|
2013 | 2013 | |
| 10 | Lc65 - Sample 1 - Follow-up 9 |
|
2014 | 2014 | |
| 11 | Lc65 - Sample 1 - Follow-up 10 |
|
2015 | 2015 | |
| 12 | Lc65 - Sample 1 - Follow-up 11 |
|
2016 | 2016 | |
| 13 | Lc65 - Sample 1 - Follow-up 12 |
|
2017 | 2017 | |
| 14 | Lc65 - Sample 1 - Follow-up 13 |
|
2018 | 2018 | |
| 15 | Lc65 - Sample 1 - Follow-up 14 |
|
2019 | 2019 | |
| 16 | Lc65 - Sample 1 - Follow-up 15 |
|
2020 | 2020 |
Lc65 - Sample 2
The population is composed of non-institutionalized males and females aged 65 to 70 in 2009 (birth year 1939 to 1943) .
Selection Criteria
- Minimum age
-
65
- Maximum age
-
70
- Countries
-
- Switzerland
- Territory
- Lausanne
- Health Status
-
- Individuals unable to respond due to cognitive impairment were excluded.
- Other Criteria
- Institutionalized individuals were excluded.
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
The second stage of sampling and recruitment in the Lc65+ study took place in 2009, with a similar procedure to that followed in the first stage.
Sample Size
- Number of Participants
- 1,489
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | Lc65 - Sample 2 - Baseline |
|
2009 | 2010 | |
| 2 | Lc65 - Sample 2 - Follow-up 1 |
|
2011 | 2011 | |
| 3 | Lc65 - Sample 2 - Follow-up 2 |
|
2012 | 2012 | |
| 4 | Lc65 - Sample 2 - Follow-up 3 |
|
2013 | 2013 | |
| 5 | Lc65 - Sample 2 - Follow-up 4 |
|
2014 | 2014 | |
| 6 | Lc65 - Sample 2 - Follow-up 5 |
|
2015 | 2015 | |
| 7 | Lc65 - Sample 2 - Follow-up 6 |
|
2016 | 2016 | |
| 8 | Lc65 - Sample 2 - Follow-up 7 |
|
2017 | 2017 | |
| 9 | Lc65 - Sample 2 - Follow-up 8 |
|
2018 | 2018 | |
| 10 | Lc65 - Sample 2 - Follow-up 9 |
|
2019 | 2019 | |
| 11 | Lc65 - Sample 2 - Follow-up 10 |
|
2020 | 2020 |
Lc65 - Sample 3
The population is composed of non-institutionalized males and females aged 65 to 70 in 2014 (birth year 1944 to 1948).
Selection Criteria
- Minimum age
-
65
- Maximum age
-
70
- Countries
-
- Switzerland
- Territory
- Lausanne
- Health Status
-
- Individuals unable to respond due to cognitive impairment were excluded.
- Other Criteria
- Institutionalized individuals were excluded.
Sources of Recruitment
- General Population
-
- Selected sample
- Supplementary Information
-
The third stage of sampling and recruitment in the Lc65+ study took place in 2014, with a similar procedure to that followed in the first and second stages. As participation rates were expected to decline over time and particularly in baby boomers, the number of invited persons was somewhat higher in sample 3.
Sample Size
- Number of Participants
- 1,678
Data Collection Events
| # | Name | Data sources | Data sources - Biosamples | Start | End |
|---|---|---|---|---|---|
| 0 | Lc65 - Sample 3 - Baseline |
|
2014 | 2015 | |
| 2 | Lc65 - Sample 3 - Follow-up 1 |
|
2016 | 2016 | |
| 3 | Lc65 - Sample 3 - Follow-up 2 |
|
2017 | 2017 | |
| 4 | Lc65 - Sample 3 - Follow-up 3 |
|
2018 | 2018 | |
| 5 | Lc65 - Sample 3 - Follow-up 4 |
|
2019 | 2019 | |
| 6 | Lc65 - Sample 3 - Follow-up 5 |
|
2020 | 2020 |
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: 2022-07-14T17:27:23.633