Title

 Irish Longitudinal Study on Aging (TILDA)

Principal Investigator(s)

 Rose Anne Kenny, Trinity College (Dublin, Ireland)

Study Purpose

 This research aims to produce a massive improvement in the quantity and quality of data, research and information relating to older people and ageing in Ireland.

 Summary

 The Irish Longitudinal Study on Ageing (TILDA) is a major inter-institutional initiative led by Trinity College Dublin which aims to produce a massive improvement in the quantity and quality of data, research and information relating to older people and ageing in Ireland. Eligible respondents for this study include individuals aged 50 and over and their spouses or partners of any age. The study involves interviews on a two yearly basis with a sample cohort of 8,504 people aged 50 and over (or their spouses/partners) and resident in Ireland, collecting detailed information on all aspects of their lives, including the economic (pensions, employment, living standards), health (physical, mental, service needs and usage) and social aspects (contact with friends and kin, formal and informal care, social participation). Both survey interviews and physical and biological measurements are utilized.

 The third wave of TILDA interviews were undertaken between March 2014 and October 2015. Of the 7,445 interviewed in Wave 2, a third interview was obtained for 6,874 respondents. These consisted of the self, proxy and end-of-life interviews types. In addition to the returning respondents, 28 interviews were obtained from eligible household members who had chosen not to take part in Wave 1 or the new spouses/partners of existing respondents.

 Demographic and background variables include age, sex, marital status, household composition, education, and employment.

 Sample

 The sample design incorporates stratification, clustering, multi-stage selection, and representative probability sampling. The dataset contains the cluster variables CLUSTER and HOUSEHOLD. The selection of geographic clusters was stratified, so that equal numbers of clusters were selected from each of three socio-economic groups. The socio-economic status of a cluster was defined by the proportion of individuals in that cluster. Please refer to the Release Guide for additional information on sampling.

 Time Method

 Longitudinal

 Universe

 Individuals aged 50 years and older and their spouses or partners of any age, who are resident in Ireland.

 Unit(s) of Observation View help for Unit(s) of Observation

 Individual, Families/Households

 Data Type(s)

clinical data,  survey data

 Mode of Data Collection

computer-assisted personal interview (CAPI),  face-to-face interview,  mail questionnaire,  self-enumerated questionnaire

 Time Period(s)

 2014 - 2015

 Date of Collection 

 2014.03 - 2015.10

 Subject Terms

ctivities of daily living;  aging  depression (psychology);  families; family life  health;  health care; health services utilization; health status;  memory  mental health;  older adults; quality of life  satisfaction;  standard of living

 Link

 https://www.icpsr.umich.edu/web/ICPSR/studies/37106/summary 

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