Cumulative incidence of relapse after SCT for CML according to results of an early RT-PCR test.

Cumulative incidence of disease recurrence at any (molecular, cytogenetic, or hematologic) level for patients with negative, low-level positive, and high-level positive RT-PCR at 3-5 months after SCT, respectively. The P value shown has been pooled over strata. The pairwise over strata P values are negative versus low positive, P = .01; negative versus high positive, P < .0001; and low positive versus high positive, P = .001.