Figure 3.

Survival status for case and control patients during the 45-day chart review period. A, Comparison of all cases, defined as persons receiving a dengue virus (DENV) RNA–positive unit and/or who tested positive for DENV RNA, to controls. B, Comparison of cases, separated into 3 groups based on whether a patient tested positive for DENV RNA and/or was exposed to a DENV RNA–positive unit, to controls. The number of subjects at risk for each group and at each time point of interest are listed at the bottom of the graphs. The number at risk at each specific time point is the number of remaining subjects after all of the events and censoring (time of loss-to-follow-up in the medical chart and indicated with by + sign in each plot) have been accounted for. Abbreviations: −, negative; +, positive; D, donor; R, recipient.