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Ecological Bias and Data Entry Errors: A Reply to Hendryx and Ahern

Borak, Jonathan MD; Slade, Martin D. MPH; Allen, Richard Read MS; Salipante-Zaidel, Catherine MEM; Fields, Cheryl A. MPH

Journal of Occupational and Environmental Medicine: July 2012 - Volume 54 - Issue 7 - p 770–773
doi: 10.1097/JOM.0b013e31825cb7c4
Letters to the Editor

Supplemental Digital Content is available in the text.

Department of Epidemiology & Public Health and Department of Medicine, Yale University, and Jonathan Borak & Company, New Haven, Connecticut

Department of Medicine, Yale University, and Jonathan Borak & Company, New Haven, Connecticut.

Peak Statistical Services, Evergreen, Colorado

Jonathan Borak & Company, New Haven, Connecticut

Department of Epidemiology & Public Health, Yale University, and Jonathan Borak & Company, New Haven, Connecticut

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Disclosure: The authors declare no conflict of interest. (The authors' original study was supported by the National Mining Association. They received no support for the preparation of this response.)

©2012The American College of Occupational and Environmental Medicine