CD274 and neoplasm: This benefit was consistent regardless of tumor PD-L1 expression, with an HR of 0.66 (95% CI: 0.50 to 0.86) for patients with PD-L1 < 1% and an HR of 0.74 (95% CI: 0.60 to 0.92) for those with PD-L1 ≥ 1%.