Hertfordshire Ageing Study (HAS)
HAS was a birth cohort study that examined life course influences on healthy ageing. Participants were recruited by tracing ledgers containing records of 6,803 live singletons born in North Hertfordshire, United Kingdom, between 1920 and 1930. Over 1,400 traced individuals were alive and still resident in North Hertfordshire in 1994, and of these, over 800 agreed to a home interview when they were aged between 63 and 73 years. The participants were followed up again, around 9 years later between 2003 and 2005, when they were aged 72-83 years.
Study design
Cohort, Cohort - birth
Number of participants at first data collection
824 (participants)
Age at first data collection
63 - 73 years (participants)
Participant year of birth
1920 - 1930 (participants)
Participant sex
All
Representative sample at baseline?
No
Sample features
Countries
Year of first data collection
1994
Primary Institutions
MRC Lifecourse Epidemiology Centre (Research, United Kingdom)
University of Southampton (Academic, United Kingdom)
Profile paper DOI
Funders
Information Centre for Health and Social Care now known as NHS England (Government, United Kingdom)
Medical Research Council (MRC) (Research council, United Kingdom)
University of Southampton (Academic, United Kingdom)
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Self-completed questionnaire – paper or computer assisted
- None
- None
- Census data
- Healthcare data
Engagement
Keywords
Consortia and dataset groups
