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The Hertfordshire Cohort Study comprises a nationally unique study of 3000 men and women born during the period 1931-1939 and still resident in the English county of Hertfordshire. Information available on these individuals includes birthweight (recorded by the attending midwife), weight at age one year (recorded by a health visitor), the method of infant feeding, and details of childhood illnesses up to age five years. Follow-up of individuals began in 1990 and medical and social histories have been ascertained, as well as detailed anthropometry, blood pressure, glucose tolerance, fasting serum cholesterol and triglycerides, bone density and physical performance. DNA on all participants has been collected and is stored in the MRC Lifecourse Epidemiology Unit, University of Southampton, UK.

The entire cohort is being followed up through primary care and hospital records for clinical outcomes including incident coronary heart disease, cerebrovascular disease, chronic airflow obstruction and fracture. The cohort members are flagged with NHS Digital for notification of deaths.

HCS is part of CLOSER (Cohort & Longitudinal Studies Enhancement Resources) which aims to maximise the use, value and impact of the UK’s longitudinal studies.

Last update: 31/01/2017

The Norfolk component of the European Prospective Investigation of Cancer (EPIC) recruited over 30,000 people from 1993 to 2000. EPIC-Norfolk participants are men and women who were aged between 40 and 79 when they joined the study and who lived in Norwich and the surrounding towns and rural areas. They have been contributing information about their diet, lifestyle and health through questionnaires and health checks over two decades.

Following baseline data collection the cohort has been followed up at 18 months by questionnaire, 3 years (1997-2000) – second health check and questionnaire, 10 years – health questionnaire , 13 years (2006-2011) – third Health examination and questionnaire.

The primary aim of the ten country half a million international EPIC collaboration is to examine the relationships between diet and incident cancers; that is, cancers which have developed after they joined the study. This broadened to include lifestyle and genetic factors and other diseases

A secondary aim is to study the relationship between dietary intake and other diseases and disease risk factors. In EPIC-Norfolk, these include heart attacks and strokes, rheumatoid arthritis, diabetes, thyroid disease, osteoporosis, dementia, eye diseases and many others. We are also studying the link between disease and other factors, such as psychosocial health.

EPIC Norfolk is part of the Dementias Platform UK (DPUK), a multi-million pound public-private partnership to accelerate progress in dementias research.

Last update: 07/12/2017

The primary objective of the English Longitudinal Study of Ageing (ELSA) is to collect longitudinal multidisciplinary data from a representative sample of the English population aged 50 and older. It began in 2002 and recruited over 12,000 people.

The study collects both objective and subjective data relating to health and disability, biological markers of disease, economic circumstance, social participation, networks and well-being. ELSA aims to measure outcomes across a wide range of domains and to provide high-quality multidisciplinary data that can shed light on the causes and consequences of outcomes of interest.

There have been seven sweeps of data collection 2002-03, 2004-05, 2006-07, 2008-09, 2010-11, 2012-2013, 2014-2015 and an eighth sweep (2016-2017) is currently underway.

The survey data are designed to be used for the investigation of a broad set of topics relevant to understanding the ageing process. These include:

  • health trajectories, disability and healthy life expectancy;
  • the determinants of economic position in older age;
  • the links between economic position, physical health, cognition and mental health;
  • the nature and timing of retirement and post-retirement labour market activity;
  • household and family structure, social networks and social supports;
  • patterns, determinants and consequences of social, civic and cultural participation;
  • predictors of well-being.

ELSA is part of the Dementias Platform UK (DPUK), a multi-million pound public-private partnership to accelerate progress in dementias research.

Last update: 13/01/2017

The Cambridge City over-75s Cohort Study (CC75C) is a long-term follow-up study of a representative population-based sample of older people which started in 1985 from a survey of over 2,600 men and women aged 75 and above. Through a series of interviews and assessments spanning almost three decades they have contributed to one of the largest and longest-running longitudinal observational studies of ageing into older old age.
The initial study targeted all men and women aged 75 or older who were registered within a selection of geographically and socially representative general practices in Cambridge, and achieved a 95% response rate in six of the seven practices. From this original survey of 2610 people, 2166 individuals form the baseline sample for the longitudinal cohort. This group has been followed up through ten surveys, with sub-groups assessed more often. Similarly high response rates amongst participants still alive in their late 80s or 90s, and even amongst centenarians, have built an extensive resource of quantitative and qualitative data contributed by a representative sample of very old people and their relatives.
The focus in later years shifted to quality of life issues of ‘older old’ people near the end of life for which we have been interviewing relatives or carers of surviving members of the cohort all aged 95 or more, as well as these study participants themselves.

Last update: 05/01//2017

The Busselton Healthy Ageing Study aims to enhance understanding of ageing by relating the clustering and interactions of common chronic conditions in adults to function. Phase I (recruitment) is a cross-sectional community-based prospective cohort study involving 5,107 ‘Baby Boomers’ (born from 1946 to 1964) living in the Busselton Shire, Western Australia. The study protocol involves a detailed, self-administered health and risk factor questionnaire and a range of physical assessments including body composition and bone density measurements, cardiovascular profiling (blood pressure, ECG and brachial pulse wave velocity), retinal photography, tonometry, auto-refraction, spirometry and bronchodilator responsiveness, skin allergy prick tests, sleep apnoea screening, tympanometry and audiometry, grip strength, mobility, balance and leg extensor strength. Cognitive function and reserve, semantic memory, and pre-morbid intelligence are assessed. Phase 2 (longitudinal, 6 year follow-up) commenced in 2016.

Last update: 25/01/2017