TILDA- The Irish Longitudinal Study on Ageing

TILDA collects information on all aspects of health, economic and social circumstances from people aged 50 and over in a series of data collection waves once every two years. TILDA provides a comprehensive and accurate picture of the characteristics, needs and contributions of older persons in Ireland to inform and support improvements in policy and practice; advancements in technology and innovation; tailored education and training through an enhanced ageing research infrastructure; harmonisation with leading international research to ensure adoption of best policy and practice and comparability of results.

Purpose: The Irish Longitudinal study on Ageing (TILDA) is an inter-institutional initiative led by Trinity College Dublin which aims to produce improvement in the quantity and quality of data, research and information relating to older people and ageing in Ireland.

In scope: Eligible respondents for this study include individuals aged 50 and over and their spouses or partners of any age. The study will involve interviews on a two yearly basis with a sample cohort of 8,000+ people aged 50 and over (or t

Coverage: A nationally representative sample of adults aged 50 and over, resident in Ireland, was selected. An initial multi-stage sample of addresses was chosen by means of the RANSAM sampling procedure, which was developed by the Economic and Social Research Institute (ESRI) based on the Irish GeodirectoryO

Data and Resources

This dataset has no data

Additional Info

Field Value
Contact points
Contact point 1
URI
Name
Trinity College Dublin (TCD)
Email
data@trinity-college-dubl.ie
Identifier
Publisher
Publisher 1
URI
Name
Trinity College Dublin (TCD)
Email
URL
Type
http://purl.org/adms/publishertype/NationalAuthority
Identifier
Creator
Homepage
Landing page
Release date January 1, 2009
Modification date December 23, 2024
Version
Version notes
Identifier NDC-0123
Frequency http://publications.europa.eu/resource/authority/frequency/MONTHLY
Provenance

Each wave of data collection involves a structured Computer Aided Personal Interview (CAPI) with a trained interviewer in the participant’s home. Each participant is also left a ‘self-completion questionnaire’ including potentially sensitive questions for them to fill in and return to TILDA by mail. At alternating waves of data collection, each participant is invited to undergo a health assessment, either a full health assessment at a specialised TILDA health centre or a modified partial assessment in their own home where travel to a centre was not practicable.

If a participant is unable to complete an interview themselves due to physical or cognitive impairment, a proxy interview completed by a close family member or friend is sought. If a participant has passed away between waves, a family member or close friend will be asked to complete an End-of-Life (EOL) interview of their behalf.

Data collection for each wave takes place every two years.
Type
Temporal coverage
Temporal coverage 1
Start
January 1, 2009
End
August 9, 2025
Temporal resolution
Spatial coverage
Spatial coverage 1
URI
http://publications.europa.eu/resource/authority/country/IRL
Label
Ireland
Geometry
Bounding Box
Centroid
Spatial resolution in meters
Access rights http://publications.europa.eu/resource/authority/access-right/PUBLIC
Other identifier
Theme
  1. http://publications.europa.eu/resource/authority/data-theme/HEAL
Language
  1. http://publications.europa.eu/resource/authority/language/ENG
Documentation
Conforms to
Is referenced by
Analytics
Applicable legislation
Has version
Code values
Coding system
Purpose
Health category
  1. http://health.europa.eu/ehds/category/public-health
Health theme
  1. http://health.europa.eu/theme/infectious-disease
  2. http://health.europa.eu/theme/epidemiology
Legal basis
Minimum typical age 15
Maximum typical age 75
Number of records 799303
Number of records for unique individuals. 273526
Personal data
Publisher note
Publisher type
Trusted Data Holder
Population coverage
Retention period
Health data access body
Qualified relation
Provenance Activity
URI
Qualified Attribution
Quality annotations