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. Author manuscript; available in PMC: 2009 May 11.
Published in final edited form as: JAMA. 2008 Aug 13;300(6):663–675. doi: 10.1001/jama.300.6.663

Figure . Millennium Cohort Study Flow of Participants From Original Sample to Baseline and Follow-up Enrollments to Final Study Population.

Figure

aThe 2560 individuals included in the pilot or feasibility study were removed from the mailing list so they would not receive an additional survey.

bIndividuals were considered ineligible if they had an invalid Social Security number, were not serving in the military as of October 1, 2000, or if the survey was filled out by someone other than the invited individual.