About the Authors

Daniel J. Smith

daniel.smith@glasgow.ac.uk

Affiliation Institute of Health and Wellbeing, Mental Health and Wellbeing Research Group, University of Glasgow, Glasgow, United Kingdom

Barbara I. Nicholl

Affiliation Institute of Health and Wellbeing, General Practice and Primary Care, University of Glasgow, Glasgow, United Kingdom

Breda Cullen

Affiliation Institute of Health and Wellbeing, Mental Health and Wellbeing Research Group, University of Glasgow, Glasgow, United Kingdom

Daniel Martin

Affiliation Institute of Health and Wellbeing, Mental Health and Wellbeing Research Group, University of Glasgow, Glasgow, United Kingdom

Zia Ul-Haq

Affiliation Institute of Health and Wellbeing, Public Health, University of Glasgow, Glasgow, United Kingdom

Jonathan Evans

Affiliation Institute of Health and Wellbeing, Mental Health and Wellbeing Research Group, University of Glasgow, Glasgow, United Kingdom

Jason M. R. Gill

Affiliation Institute of Health and Wellbeing, Public Health, University of Glasgow, Glasgow, United Kingdom

Beverly Roberts

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, United Kingdom

John Gallacher

Affiliation National Centre for Mental Health, Institute of Neurosciences and Mental Health, Cardiff University, Cardiff, United Kingdom

Daniel Mackay

Affiliation Institute of Health and Wellbeing, Public Health, University of Glasgow, Glasgow, United Kingdom

Matthew Hotopf

Affiliation Institute of Psychiatry, Kings College London, London, United Kingdom

Ian Deary

Affiliation Centre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, University of Edinburgh, Edinburgh, United Kingdom

Nick Craddock

Affiliation National Centre for Mental Health, Institute of Neurosciences and Mental Health, Cardiff University, Cardiff, United Kingdom

Jill P. Pell

Affiliation Institute of Health and Wellbeing, Public Health, University of Glasgow, Glasgow, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DJS JPP NC JG MH. Performed the experiments: DJS BIN BC. Analyzed the data: DJS BIN D.Martin BC D.Mackay ZUH. Wrote the paper: DJS JP ID MH NC D.Martin BR BIN JG JE.