Who are they?
Cohort 98 are adults who were born, mostly, in 1998 and were enrolled in the study when they were 9 years old in 2007. All the members of Cohort 98 were living in the Republic of Ireland when they were invited to take part. Interviews subsequently took place when they were aged 13 years, 17/18 years, 20 years, and 25 years. There was also a special COVID survey conducted online when they were around 22 years old in December 2020.
What’s happening now and next?
The Central Statistics Office (CSO) interviewed Cohort 98 at age 25 in 2023/24 and made the data available to researchers in the summer of 2025.
The next wave of data collection for Cohort ’98, is planned for when they turn 30 years old.
Publications
You can see all official publications for Cohort 98 at this link:
You can also browse an index of external papers, for both cohorts, here:
Questionnaires
The questionnaires from previous waves of Cohort ’08 and Cohort ’98 are available here:
I’m a researcher, how do I get access to data from Cohort ’98?
Information on how to apply for all GUI datasets can be found here:
I’m a participant, where do I get more information about my involvement?
The survey part of the Growing Up in Ireland study is carried out by the Central Statistics Office. You can view their website for Cohort 98 here: