The research undertaken in this report was funded by the Gaelic Athletic Association (GAA) and the Gaelic Players Association (GPA). We would like to thank the individuals within both organisations who provided support and assistance during the project. In particular, we would like to thank the Ard Stiúrthóir and the Uachtarán of the GAA, Tom Ryan and John Horan. We are also grateful to their colleagues Feargal McGill, Director of Player, Club and Games Administration; Kevin Leahy, Player Welfare Manager; and Colin Regan, Community and Health Manager, who provided assistance throughout the research process. In addition, we are grateful for the support from the CEO and the Chairperson of the GPA, Paul Flynn and Seamus Hickey. Thanks are also due to their colleagues Eamonn Murphy, Player Representation Manager, and Tom Dillon, Chief Operating Officer, for their active engagement with the project. Thanks to Alan Milton (GAA) and Kieran McSweeney (GPA) for their assistance with communications. We would also like to thank the Central Statistics Office (CSO) for the special data tabulations that it undertook for the study: in particular, Alexandra Didilescu, Clerical Officer in the CSO's Census Division, and Eva O'Regan, Statistician in the CSO's SILC Division. We are grateful for the assistance provided by our ESRI colleagues Bertrand Maitre, Emer Smyth and Selina McCoy, who provided access to data for some of the comparative analysis work, and also Louise Gallagher and Sarah Burns for their work in preparing this publication. Finally, our thanks go to the Director of the ESRI, Alan Barrett, and to the external and internal referees for their contributions to the report.