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The English Longitudinal Study
of Ageing (ELSA)Data & Documentation 2008
Jibby Medina
NatCen
Content
• ELSA data sets – in archive• Questionnaires• Variable listings• Field documents• User Guides
• Life History
• ELSA data sets – not archived• Administrative Data
Data available
ELSA data in archive (1)
• Index file for linking (including mortality data)• All eligible ELSA respondents & all HH members (HSE)• Serial No, outcomes & basic data
• Wave 0• HSE waves 1998, 1999 & 2001• Common variables across 1998, 1999 & 2001
ELSA data in archive (2)
Waves 1 – 3• Core variables
and financial
derived variables• Training dataset
Wave 2 nurse data
File Wave 0
Wave 1
Wave 2
Wave 3
Wave 4
Core Data TBA
Nurse Data N/A N/A TBA
Index File Updates TBA TBA
Life History Data N/A N/A N/A TBA N/A
Ryff Self Completion Data
N/A N/A N/A N/A
Telephone Interview (with non -responders) Data
N/A N/A N/A TBA TBA
End of Life Interview Data
N/A N/A N/A TBA TBA
Financial Derived Variables
N/A TBA
Pension Wealth Derived Variables
N/A N/A N/A N/A
Pension Grid N/A TBA
Mortgage Data N/A N/A N/A N/A
Mortgage Grid N/A N/A N/A TBA
Technical Report N/A5 TBA TBA
ELSA documentation (1)
• Questionnaire:
• Complete questionnaires – W1, W2 & W3
Future developments:
• Flowcharts of questionnaire
• Interactive documentation – also HRS and SHARE
ELSA documentation (2) - Variable listing
ELSA documentation (3)
• Field documents:
• Main & nurse survey documents
• Coding & editing instructions
• User guides for datasets
ELSA documentation (4) – User guides for data sets
• Sample Design and Fieldwork - Original & Refreshment
• Dataset Information:
Serial Numbering Multi-Coded and Dichotomous Variables
Interview Outcome Survey Module Identifiers
Age & Gender Dropped Variables (disclosive)
Missing Values Proxy or Institution respondents
• Weighting - Longitudinal weight & Cross-sectional weight
• Additional - Additional Variables & Files Deposited at UK Data Archive
Notes About Particular Variables
Variables With a Different Name or Label (at this wave)
Life History Interview
Life History Interview
• Follow up interview at Wave 3
• We know little about ELSA respondents before their HSE interview (i.e. before 1998)
• 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
Data not archived
Other data available (not archived)
• Wave 2 genetics data
• Geography (Waves 0, 1, 2 & 3)
• Government office region
• Local authority
• Population density
• Urban/rural indicator
• Index of Multiple Deprivation (IMD)
• Other non-archived variables (e.g. Cause of death)
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
Administrative data
Additional health data• Hospital Episodes Statistics (HES)• Cancer register• To be matched soon
Approx 80% of respondents consented to HES and DWP/HMRC data linkage
ELSA Reports
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)• s.nunn@natcen.ac.uk
ELSA lead researcher (Kate Cox)• k.cox@natcen.ac.uk
The English Longitudinal Study of
Ageing (ELSA)
Thank you
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