TUG1 and acute lymphoblastic leukemia: Univariate Cox's proportional hazard regression analysis indicated that higher lncRNA TUG1 tier (HR = 1.971, P < .001), age (≥35 years) (HR = 2.207, P = .019), CNSL (HR = 3.764, P = .006), and increased WBC at diagnosis (HR = 4.133, P < .001) were correlated with decreased DFS, while immunophenotype (B‐ALL vs. T‐ALL) (HR = 0.426, P = .020), CR within 4 weeks (HR = 0.165, P < .001), and allo‐HSCT (HR = 0.086, P < .001) were correlated with increased DFS (Table 3).