Figure 4.

Histograms comparing time to initial polyomavirus reactivation (Polyoma+) and time to initial detection of antibodies to FN/Col-IV (FN/Col-IV Abs+) during year 1 post-transplant within each subject who experienced both end points (n=15). The median (minimum, maximum) time to polyomavirus reactivation (BK viremia or JC viruria) was significantly shorter (1.0 [0.2, 4.5] months) compared with the median time to detection of FN/Col-IV antibodies (4.0 [1.0, 9.0] months) (P<0.01, by Mann–Whitney U test).