Cumulative incidences of neutrophil and platelet recovery after transplantation. (A) Probability of neutrophil recovery to more than 0.5 × 109/L (500 cells/mm3). The speed of recovery was significantly slower in CB transplant recipients than in BM transplant recipients (P < .01). The overall myeloid engraftment rates were 92% (95% CI, 85%-99%) in the CBT group and 100% in the BMT group on day 42. (B) Probability of platelet recovery to more than 20 × 109/L (20 000 cells/mm3). The speed of recovery was significantly slower in CB transplant recipients than in BM transplant recipients (P < .01). Platelet counts of more than 20 × 109/L (20 000/mm3) on day 100 were 90% (95% CI, 82%-95%) and 91% (95% CI, 82%-100%) for the CBT and BMT groups, respectively.
