About the Authors

Frances Shiely

f.shiely@ucc.ie

Affiliation Department of Epidemiology and Public Health, University College Cork, Cork City, Ireland

Kevin Hayes

Affiliation Department of Mathematics and Statistics, University of Limerick, Limerick, County Limerick, Ireland

Ivan J. Perry

Affiliation Department of Epidemiology and Public Health, University College Cork, Cork City, Ireland

C. Cecily Kelleher

Affiliation School of Public Health, Physiotherapy and Population Sciences, University College Dublin, Dublin City, Ireland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

PI on SLAN 2007: IJP. Conceived and designed the experiments: FS KH CCK. Analyzed the data: FS KH. Wrote the paper: FS KH CCK.