a nonsignificant trendp = 0.072
48.5 months, adjusted HR 1.539, p = 0.003), while progression‐free survival (PFS) under PD‐1/PD‐L1 inhibitor therapy or chemoimmunotherapy showed a nonsignificant trend (7.1 vs. 13.0 months, adjusted HR 1.253, p = 0.072).