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Ireland Longitudinal Study on Ageing 2009-2011


General Info
Original or alternative title 
The Irish Longitudinal Study on Ageing (TILDA), Wave 1
Ireland (IRL)
Coverage type 
Time period covered 
10/2009 - 07/2011
Series or system 
Ireland Longitudinal Study on Ageing (TILDA)
Data type
  • Household
  • Individual
  • Interview
  • Longitudinal
  • Nationally representative

The Irish Longitudinal Study on Ageing (TILDA) was designed to collect information over time on older adults and ageing in Ireland. The first wave, conducted in 2009-2011, collected detailed social, economic, and health information from a nationally representative sample of 8,000 Irish adults aged 50 and over and their spouses and partners (of any age). Three measures were used to collect information from all respondents: a computer-assisted personal interview, a self-completion questionnaire, and a health assessment at a designated health center or in the participant's home. The health assessment included anthropological and blood pressure measurements, blood tests for cholesterol, a visual acuity exam, and cognitive and mental health assessments. A heel ultrasound was also performed as a measure of bone density.