Kaplan-Meier analysis to estimate peak values of plasma IL-7 and CCL19 during the first 28 days after CAR T treatment as predictors of PFS. The optimal cut-off points for IL-7 and CCL19 were determined by ROC curves and area under the curve. Data are shown as mean SD. a – d , f , g n = 39; e n = 26. Two-tailed Student’s t- test ( b upper and e) , two-tailed Student’s t- test with Welch’s correction ( b , lower), z-test ( c ) and log-rank test ( d , f and g ). * P < 0.05, ** P < 0.01.
