About the Authors

Fiona Matthews
MRC Biostatistics Unit, Institute of Public Health, University Forvie Site, Robinson Way, Cambridge, United Kingdom

Carol Brayne
Department Public Health and Primary Care, Institute of Public Health, University Forvie Site, Robinson Way, Cambridge, United Kingdom

Corresponding Author

carol.brayne@medschl.cam.ac.uk

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

CB and MRC CFAS investigators designed the study. FM, CB, and MRC CFAS investigators analyzed the data. CB and MRC CFAS investigators enrolled patients. FM, CB, and MRC CFAS investigators contributed to writing the paper.