Cambridge City over-75s Cohort Study
The CC75C is a long-term follow-up study of a representative population-based sample of older people. It aimed to study the prevalence, incidence and risk factors for cognitive decline and dementia.
- Start Year
- 1985
Visit CC75C
| Investigators | Contacts |
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Design
- Study design
- Cohort
- Follow Up
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After the first survey, participants were followed-up at year 2, 7, 10, 13, 17, 21, 23, 25 and 28, for a total of 10 surveys to date.
Marker Paper
Fleming J, Zhao E, O'Connor DW, Pollitt PA, Brayne C. Cohort profile: the Cambridge City over-75s Cohort (CC75C). International Journal of Epidemiology, 2007; 36(1): 40-6.
PUBMED 17510074
Recruitment
- Recruitment Target
-
- Individuals
Number of Participants
- Number of Participants
- 2,166
- Number of Participants with Biological Samples
- 284
Access
Availability of data and biosamples
| Possible Access to Data | |
| Possible Access to Biosamples | |
| Other |
Timeline
CC75C population
The baseline study targeted all men and women aged 75 years or older, who were registered with a selection of geographically and socially representative practices in Cambridge.
Selection Criteria
- Minimum age
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75
- Newborns
- Twins
- Countries
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- United Kingdom
- Territory
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Cambridge
Recruitment
- Sources of recruitment
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- Specific population
- Specific Population
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- Clinic patients
- Supplementary Information
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Participants were registered with a selection of general practices in Cambridge.
Number of Participants
- Number of Participants
- 2,166
- Number of Participants with Biological Samples
- 284
- Supplementary Information about selection criteria
-
Survey 1: 2166 participants
Survey 2: 1177 participants
Survey 3: 713 participants
Survey 4: 446 participants
Survey 5: 233 participants
Survey 6: 110 participants
Survey 7: 44 participants
Survey 8: 11 participants
Survey 9: 7 participants
Survey 10: 3 participants
Data Collection Events
| # | Name | Description | Start | End |
|---|---|---|---|---|
| 0 |
CC75C - Survey 1
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
1985 | 1988 |
| 1 |
CC75C - Survey 2
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
1988 | 1990 |
| 2 |
CC75C - Survey 3
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
1992 | 1993 |
| 3 |
CC75C - Survey 4
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
1995 | 1995 |
| 4 |
CC75C - Survey 5
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
1998 | 1999 |
| 5 |
CC75C - Survey 6
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
2002 | 2003 |
| 6 |
CC75C - Survey 7
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
2006 | 2007 |
| 7 |
CC75C - Survey 8
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
2008 | 2009 |
| 8 |
CC75C - Survey 9
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
2010 | 2011 |
| 9 |
CC75C - Survey 10
|
The interview provided longitudinal data on sociodemographic variables (place of residence, household structure, marital status and social contact), activities of daily living, use of health ... |
2013 | 2013 |
Classifications
- Socio-demographic and economic characteristics
- Lifestyle and behaviours
- Birth, pregnancy and reproductive health history
- Perception of health, quality of life, development and functional limitations
- Diseases
- Symptoms and signs
- Medication and supplements
- Non-pharmacological interventions
- Health and community care services utilization
- Death
- Physical measures and assessments
- Laboratory measures
- Cognition, personality and psychological measures and assessments
- Life events, life plans, beliefs and values
- Preschool, school and work life
- Social environment and relationships
- Physical environment
- Administrative information
- Cognitive functioning
- Personality
- Psychological distress and emotions
- Other psychological measures and assessments
- Perception of health
- Quality of life
- Life course development
- Functional limitations
- Other perception of health, quality of life and functional limitation-related information
Socio-demographic and economic characteristics
Lifestyle and behaviours
Birth, pregnancy and reproductive health history
Perception of health, quality of life, development and functional limitations
Diseases
Symptoms and signs
Medication and supplements
Non-pharmacological interventions
Health and community care services utilization
Physical measures and assessments
Cognition, personality and psychological measures and assessments
Life events, life plans, beliefs and values
Social environment and relationships
Physical environment
Administrative information
Cognitive functioning
Psychological distress and emotions
Functional limitations