Individual Study / HAS

Hertfordshire Ageing Study (HAS)

Hertfordshire Ageing Study (HAS)

Initiatives -
The principal objective of the HAS is to examine life course influences on healthy ageing. The outcomes of interest are sarcopenia, frailty, falls, physical performance and cognitive function. The main potential determinants of healthy ageing under investigation are intra-uterine and post-natal size and growth, genetic characteristics and adult physical activity, diet, lifestyle and socioeconomic status.
Start Year
1994
Funding
The Medical Research Council and the University of Southampton were the principal sources of funding.
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Members

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Investigators Contacts
  • Dr. Prof. Cyrus Cooper
    University of Southampton

Design

Study design
Population cohort
Follow Up
The first HAS follow-up was conducted in 1994–95 when the participants ranged in age from 63 to 73 years (mean 67). The second formal follow-up was conducted in 2003–05 after a median time of 9 years between follow-ups (range 8.2–10.0 years) when participating members of the cohort were aged 72–83 years (mean 76).

Marker Paper

Syddall HE, Simmonds SJ, Martin HJ, et al. Cohort profile: The Hertfordshire Ageing Study (HAS). Int J Epidemiol. 2010;39(1):36-43. doi:10.1093/ije/dyn275

PUBMED 19131391

Recruitment

Sources of Recruitment
  • Individuals

Number of participants

Number of participants
6,803
Number of participants with biosamples
Supplementary Information
men and women born in Hertfordshire between 1920 and 1930

Access

Availability of data and biosamples

Data
Biosamples
Other