About the Authors

Jane Fleming

jane.fleming@phpc.cam.ac.uk

‡ JF and MF are joint first authors on this work. CB and SB are joint last authors on this work.

Affiliations Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom, Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Morag Farquhar

‡ JF and MF are joint first authors on this work. CB and SB are joint last authors on this work.

Affiliations Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom, Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Cambridge City over-75s Cohort (CC75C) study collaboration

Membership of the CC75C study is provided in the Acknowledgments.

Affiliations Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Carol Brayne

‡ JF and MF are joint first authors on this work. CB and SB are joint last authors on this work.

Affiliations Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Stephen Barclay

‡ JF and MF are joint first authors on this work. CB and SB are joint last authors on this work.

Affiliations Cambridge Institute of Public Health, University of Cambridge, Cambridge, United Kingdom, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom, Primary Care Unit, Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Wrote the paper: JF MF CB SB. Devised the study and obtained funding: JF MF CB SB. Collected data with acknowledged co-fieldworkers: JF. Devised the coding framework: JF MF SB. Cleaned and coded the data, conducted the analyses and together wrote the first draft: JF MF. Contributed to conceptual discussions throughout the research process and to re-drafting the manuscript: SB CB. Agreed the final draft: JF MF CB SB. Guarantors for the paper: JF MF.