Cumulative incidence curves of NRM at post-HCT landmarks +7, +14, and +21 days, by age group, and by ST2, TNFR1, REG3α, and IL-6 values. Curves comparing 4 groups: (Ai, Bi, Ci) high vs low ST2 (above or below the median of 26 ng/mL); (Aii, Bii, Cii) high vs low TNFR1 (above and below the median of 3441 pg/mL); (Aiii, Biii, Ciii) high vs low REG3α (above and below the median of 25 ng/mL); and (Aiv, Biv, Civ) high vs low IL-6 (above and below the median of 26.5 pg/mL) in patients age 10 years or younger, and in those older than age 10 years (see supplemental Table 9).