Therefore, in the ITT analysis,
patient survival times were censored only when patients received a
transplant, experienced a return of renal function, were lost to follow-
up monitoring, or completed the study. An as-treated analysis
was also performed, in which patients were censored if they withdrew
from the study alive on or before May 6, 2001, regardless of the
reason for withdrawal. In this analysis, patient data were analyzed
according to the treatment group to which the patients were randomized
but follow-up monitoring ceased upon death, withdrawal from
the study, or May 6, 2001, whichever came first.