Cambridge City over-75s Cohort Study (CC75C)

GENERAL
Year
1985
Country
United Kingdom
STUDY DETAILS
Waves

Wave 1: 1985 – 1988
Wave 2: 1988 – 1990
Wave 3: 1992 – 1993
Wave 4: 1995 – 1995
Wave 5: 1998 – 1999
Wave 6: 2002 – 2003
Wave 7: 2006 – 2007
Wave 8: 2008 – 2009
Wave 9: 2010 – 2011
Wave 10: 2013 – 2013

Sample size

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

Sample population

75+

Sample residence

75+

Survey mode

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 and social service, health problems and medication.

Each survey has included a detailed cognitive assessment, including at least the Mini-Mental State Examination (MMSE), usually its extended version and, in the majority of interviews, the Cambridge Cognitive Exam (CAMCOG).

Those scored 23 below in the MMSE were assessed using the Cambridge Mental Disorders of the Elderly Examination (CAMDEX), designed to detect mild dementia. The CAMDEX includes a mental state examination, a psychiatric history, detailed cognitive testing, and an interview with a proxy informant.

Longitudinal or cross-section study

Longitudinal

Data sources

Questionnaires, cognitive measures

Main topics

Prevalence, incidence and risk factors for cognitive decline and dementia

Goals

It aimed to study the prevalence, incidence and risk factors for cognitive decline and dementia.

Scientific domain

Social Science, medicine, psychology

Age studies subcategories
Age Study (75+)
INSTITUTION
Institution

University of Cambridge

Department of Public Health and Primary Care

Contact

Prof. Carol Brayne
cb105@medschl.cam.ac.uk

Emily Zhao
ez219@medschl.cam.ac.uk

Dr. Jane Fleming
jane.fleming@phpc.cam.ac.uk

LINKS / PUBLICATIONS
Links

www.cc75c.group.cam.ac.uk/index.html

Publications

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.