Open Access Research article

Assessing nonresponse bias at follow-up in a large prospective cohort of relatively young and mobile military service members

Alyson J Littman12*, Edward J Boyko1, Isabel G Jacobson3, Jaime Horton3, Gary D Gackstetter4, Besa Smith3, Tomoko Hooper5, Timothy S Wells3, Paul J Amoroso6, Tyler C Smith3 and the Millennium Cohort Study

Author Affiliations

1 Seattle Epidemiologic Research and Information Center, Department of Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA

2 Department of Epidemiology, University of Washington, Seattle, WA, USA

3 Department of Deployment Health Research, Naval Health Research Center, San Diego, CA

4 Analytic Services, Inc. (ANSER), Arlington, VA, USA

5 Departments of Preventive Medicine and Biometrics, Uniformed Services University of Health Sciences, Bethesda, MD, USA

6 Madigan Army Medical Center, Fort Lewis, WA, USA

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BMC Medical Research Methodology 2010, 10:99  doi:10.1186/1471-2288-10-99

Published: 21 October 2010

Additional files

Additional file 1:

Distribution of various demographic and military characteristics in the sample invited to participate in the Millennium Cohort Study in 2001 and responders to the first follow-up survey in 2004.

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