1. Factorsβ95% CIP-value TRECs 1 mMA0.224(0.034– 0.592)0.028* Younger donor age (BM)0.356(0.191– 1.150)0.007* 3 mYounger recipient age0.243(0.046– 0.781)0.028* Younger donor age (BM)0.555(0.623– 1.689)0.000* Relation0.222(0.007– 0.710)0.045* 6 mYounger recipient age0.342(0.277– 1.595)0.006* No chronic GVHD0.498(0.714–1.880)0.000* 1 yYounger recipient age0.584(0.922– 2.301)0.000* PID0.366(0.221– 1.809)0.013* Younger donor age (BM)0.532(0.504–3.417)0.011* BM (compared with CB)-0.356(-1.865– -0.150)0.023† No chronic GVHD0.467(0.527– 2.041)0.001* 2 yYounger recipient age0.707(0.974– 2.592)0.000* PID0.584(0.567– 2.500)0.003* sjKRECs 1 mYounger donor age (BM)0.396(0.187– 0.833)0.003* BM (compared with CB)-0.252(-0.772– -0.075)0.018† 3 mYounger recipient age0.233(0.048– 1.287)0.035* Younger donor age (BM)0.425(0.445– 2.132)0.004* BM (compared with CB)-0.272(-1.325– 0.117)0.020† Grade 0–2 aGVHD0.370(0.485–1.984)0.002* No chronic GVHD0.392(0.478–1.538)0.000* No use of PSL/HDC0.309(0.246– 1.334)0.005* 6 mYounger recipient age0.423(0.522– 1.794)0.001* MA0.316(0.192– 1.466)0.012* Younger donor age (BM)0.448(0.257–2.369)0.017* Grade 0–2 aGVHD0.320(0.209– 2.065)0.017* No chronic GVHD0.281(0.085– 1.378)0.027* No use of ATG0.339(0.285– 1.730)0.007* 1 yYounger recipient age0.492(0.462– 1.567)0.001* PID0.329(0.080– 1.277)0.027* PB (compared with CB)-0.469(-2.884– -0.102)0.037† Grade 0–2 aGVHD0.436(0.396– 2.220)0.006* No chronic GVHD0.501(0.477– 1.587)0.001* 2 yYounger recipient age0.632(0.475– 1.669)0.001* PID0.459(0.099–1.523)0.028* Younger donor age (BM)0.761(0.493– 2.266)0.007* BM (compared with CB)-0.593(-1.381– -0.291)0.005† PB (compared with CB)-0.701(-3.087– -0.406)0.016† Grade 0–2 aGVHD0.682(0.701–2.544)0.002* No chronic GVHD0.447(0.070– 1.447)0.032* Supplementary Table II. Univariate analysis of factors that contributed to the levels of TRECs, sjKRECs, and cjKRECs. *Significant favorable factors that contributed to the levels of TRECs, sjKRECs, and cjKRECs. †Significant unfavorable factors that contributed to the levels of TRECs, sjKRECs, and cjKRECs. Factorsβ95% CIP-value cjKRECs 1 mYounger donor age (BM)0.353(0.190– 1.185)0.008* 3 mYounger recipient age0.224(0.023– 1.405)0.043* MA0.239(0.063– 1.338)0.032* Younger donor age (BM)0.525(0.936– 2.793)0.000* BM (compared with CB)-0.326(-1.672– -0.312)0.005† Grade 0–2 aGVHD0.310(0.301– 2.023)0.009* No chronic GVHD0.392(0.532– 1.714)0.000* No use of PSL/HDC0.297(0.235– 1.447)0.007* 6 mYounger recipient age0.451(0.673– 2.058)0.000* MA0.252(0.012– 1.449)0.046* Younger donor age (BM)0.422(0.191– 2.657)0.025* PB (compared with CB)-0.438(-2.473– -0.329)0.012† Grade 0-2 of aGVHD0.267(0.004– 2.091)0.049* No chronic GVHD0.332(0.256– 1.658)0.008* No use of ATG0.295(0.158– 1.779)0.020* 1 yYounger recipient age0.459(0.414– 1.630)0.002* Younger donor age (BM)0.466(0.101– 1.647)0.029* BM (compared with PB)0.377(0.033–2.091)0.044* Grade 0–2 aGVHD0.414(0.358– 2.429)0.010* No chronic GVHD0.358(0.149– 1.447)0.017* 2 yPID0.505(0.171– 1.352)0.014* BM (compared with CB)-0.478(-0.790– -0.050)0.028† PB (compared with CB)-0.722(-3.091– -0.499)0.012† BM (compared with PB)0.620(0.280–2.470)0.018* Grade 0–2 aGVHD0.659(0.551– 2.236)0.003* No chronic GVHD0.493(0.143– 1.287)0.017*