CD274 and neoplasm: However, when the model was adjusted for the clinical variables age, ECOG performance status, residual disease, FIGO stage and tumour histology, PD‐L1 negative samples in the stroma and in both stroma and tumour were associated with a significantly worse prognosis both in PFS (Hazard Ratio [HR] = 1.57, p = 0.003) and in OS (HR = 1.56, p = 0.048) (Table 2).