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The English Longitudinal Study of Ageing (ELSA)
2008 Update
Kate Cox
Content
• Brief background to ELSA
• Current wave of data collection
• Data and documentation available for ELSA
• Future ELSA events
Key facts about ELSA
• A study of people aged 50+ and their partners
• Multi-disciplinary - health, economic and social
circumstances
• Longitudinal - change over time
• Comparative - USA (HRS) and Europe (SHARE)
• Funding - National Institute on Aging, UK
Government Departments
• Dept of Epidemiology and Public Health, UCL
• National Centre for Social Research
• Institute for Fiscal Studies and UCL Dept of
Economics
• Universities of Cambridge, East Anglia and Exeter,
and Imperial College
Research Team
History
ELSA Wave One 2002Core Interview (12,099)
ELSA Wave One 2002Core Interview (12,099)
HSE + Nurse1998-1999-2001
HSE + Nurse1998-1999-2001
Interview Content at Wave 1
Household and individual demographics
Health
Social participation
Work and pensions
Income and assets
Housing and consumption
Cognitive function (assessments)
Expectations
Psychosocial health
Final questions
Timed walk (assessment)
Self-completion
ELSA Wave One 2002Core Interview (12,099)
ELSA Wave One 2002Core Interview (12,099)
Wave Two 2004Core (9,432)
Wave Two 2004Core (9,432)
HSE + Nurse1998-1999-2001
HSE + Nurse1998-1999-2001
Wave Two 2004Nurse (7,666)
Wave Two 2004Nurse (7,666)
Interview Content at Wave 2
Household and individual demographics
Health
Social participation
Work and pensions
Income and assets
Housing and consumption
Cognitive function (assessments)
Expectations
Effort and reward (of voluntary work and caring)
Psychosocial health
Final questions
Timed walk (assessment)
Self-completion
Changes at Wave 2
• Some new topics - e.g. quality of health care
received, alcohol consumption, literacy
assessment
• Moves into institution
• End of life interview
• Nurse visit
Nurse Content at Wave 2
Blood pressure
Grip strength
Blood sample (fasting where possible)
Height (standing, sitting)
Weight
Waist and hip measurement
Lung function
Balance
Leg rise
Chair raise
Saliva sample (after visit)
Self-completion on personal beliefs & wellbeing (one in ten households)
ELSA Wave One 2002Core Interview (12,099)
ELSA Wave One 2002Core Interview (12,099)
Wave Two 2004Core (9,432)
Wave Two 2004Core (9,432)
HSE + Nurse1998-1999-2001
HSE + Nurse1998-1999-2001
Wave Two 2004Nurse (7,666)
Wave Two 2004Nurse (7,666)
Wave Three 2006Core (9,771)
Wave Three 2006Core (9,771)
Wave Three 2006Life History (7,848)
Wave Three 2006Life History (7,848)
ELSA Wave One 2002Core Interview (12,099)
ELSA Wave One 2002Core Interview (12,099)
HSE + Nurse1998-1999-2001
HSE + Nurse1998-1999-2001
HSE + Nurse
2001-04
HSE + Nurse
2001-04
Wave Two 2004Core (9,432)
Wave Two 2004Core (9,432)
Wave Two 2004Nurse (7,666)
Wave Two 2004Nurse (7,666)
Wave Three 2006Core (9,771)
Wave Three 2006Core (9,771)
Wave Three 2006Life History (7,848)
Wave Three 2006Life History (7,848)
Changes at Wave 3
• Added new people aged 50-53 to sample
• No new modules, but some new questions -
dental health, use of services, consumption of
fruit & vegetables
• New self completions - anchoring vignettes
• Short telephone interview with persistent
refusers
• Life history interview
Life History Interview
Life History Interview
• Follow up interview at Wave 3
• Asks about childhood and important life events
• Aim to enhance our understanding of how early life and events throughout life impact upon circumstances of older people
• Calendar technique to enhance recall
Topics covered
• Children & fertility
• Partners
• Where lived
• Work history
• Health
• Relationship with parents as a child
• Other important life events
ELSA Wave One 2002Core Interview (12,099)
ELSA Wave One 2002Core Interview (12,099)
HSE + Nurse1998-1999-2001
HSE + Nurse1998-1999-2001
HSE + Nurse
2001-04
HSE + Nurse
2001-04
Wave Two 2004Core (9,432)
Wave Two 2004Core (9,432)
Wave Two 2004Nurse (7,666)
Wave Two 2004Nurse (7,666)
Wave Three 2006Core (9,771)
Wave Three 2006Core (9,771)
Wave Three 2006Life History (7,848)
Wave Three 2006Life History (7,848)
HSE + Nurse2006
HSE + Nurse2006
Wave Four 2008Core Interview
Wave Four 2008Core Interview
Wave Four 2008Nurse Visit
Wave Four 2008Nurse Visit
Changes at Wave 4
• Added new people aged 50-74 to sample
• New questions – sleep, menopause, working
beyond state pension age, receipt of monetary
gifts, formal/informal volunteering, identifying
carers, use of respite services, TV watching,
altruism
• Added numeracy questions back in from Wave 1
• Nurse visits – in institutions
Nurse Content at Wave 4
Blood pressure
Grip strength
Blood sample (fasting where possible)
Height (standing, sitting)
Weight
Waist and hip measurement
Lung function
Balance
Leg rise
Chair raise
Saliva sample (after visit) – for new sample & 10% of original sample
Data available
ELSA data in archive
Waves 1 – 3• Core variables and financial derived variables• Training dataset
Wave 2 nurse data
Wave 0 (HSE) data
Index file for linking (including mortality data)
ELSA documentation
Currently archived:
• Complete questionnaires
• Field documents, coding & editing info etc.
• User guides for datasets
Future developments:
• Flowcharts of questionnaire
• Interactive documentation – also HRS and SHARE
Future data to be archived
Life History Interview data Autumn 2008
End of life interview data Autumn
2008
Wave 4 interview data End 2009
Wave 4 nurse data Early 2010
Other data available (not archived)
Geography (Waves 0, 1 & 2)
Wave 2 genetics data
Other non-archived variables
Administrative data
DWP & HMRC administrative data• National insurance contributions• Benefit records• Tax credit records• Added at Wave 3: tax records, savings and pensions• Request access from NatCen data manager
Additional health data• Hospital Episodes Statistics (HES)• Cancer register• To be matched soon
Future ELSA events
Launch of Wave 3 report – 16th July 2008
ELSA users group – Autumn 2008
Where to get more info
ELSA website• http://www.ifs.org.uk/elsa
Data and associated documentation• http://www.esds.ac.uk/longitudinal/
ELSA data manager (Susan Nunn)• [email protected]
To contact me...• [email protected]
The English Longitudinal Study of
Ageing (ELSA)