Cumulative-incidence curves of time-to-first infection stratified by baseline characteristics. (A-C) Cumulative incidences of any infection within 28 days after CAR–T-cell infusion stratified by underlying disease (A), number of prior antitumor treatment regimens (B), and CAR–T-cell dose of 2 × 10⁵ cells per kg (dose level 1), 2 × 10⁶ cells per kg (dose level 2), or 2 × 10⁷ cells per kg (dose level 3) (C). P values are derived from adjusted Poisson regression (Table 3). Dotted lines represent the 95% CIs. DL, dose level; Ptx, prior therapy.