Am J Epidemiol 2004; 159:1203-1204.
Copyright © 2004 by the Johns
Hopkins Bloomberg School of Public Health
LETTERS TO THE EDITOR |
THE AUTHORS REPLY
1 Strangeways Research Laboratory, Institute of Public Health, University of Cambridge, Cambridge, United Kingdom
2 Clinical Gerontology Unit, University of Cambridge School of Clinical Medicine, Addenbrookes Hospital, Cambridge, United Kingdom
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We thank Dr. Macleod and colleagues for their comments (1). Macleod et al. make a number of broad-ranging observations on our recent paper (2) and another, unrelated publication (3) that concern residual confounding, disease-specific associations, clarity in risk factor specification, and interpretation of results. These issues are central to the professional practice of public health observational epidemiology but