Finally, a predictive model for 5‐year OS in CAYAs with B‐ALL was prosed, risk score = expr (BCL2A1) × 0.193929‐expr(EFNB1) × 0.22053‐expr(CYBB) × 0.14097 (Table 3). This evidence concerns the gene BCL2A1 and acute lymphoblastic leukemia.