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TABLE 6-1. Distribution of Participation in Nuclear Test Series
Number of Nuclear Test Series in which Person Participated
* This count includes all participants, not only Navy personnel.
Note that 90 percent (n = 38,203) of CROSSROADS participants did not participate in any other military nuclear test. Of the remaining 10 percent (n = 4,323) who did, most (90.5 percent) were in only one other test (with almost half of those qualifying only by their inclusion in post-CROSSROADS activities, which we consider a separate test series for classification purposes).
Primary Analysis—Navy Personnel Only
The participant cohort was 91 percent Navy personnel. Because Navy records were the most complete (as will be discussed in Chapter 9), primary analyses for this report are limited to the 38,662 participating Navy personnel
Exclusivity of Participant and Comparison Cohorts
The comparison roster was checked against the participant roster. The 205 Navy individuals appearing on both were deleted from the control roster for this report's analyses.