The corresponding values in patients with tumor PD-L1 expression level of 1% or more were 29.67 months (95% confidence interval 2.63–not reached) and 25.95 months (95% confidence interval 5.59–not reached) (hazard ratio 1.10, 95% confidence interval 0.31–3.92), respectively. This evidence concerns the gene CD274 and neoplasm.