did not reach statistical significancep -value = 0.073
We noted a 20% improvement in survival for Caucasians with the introduction of immunotherapy (adjusted HR 0.80, 95% CI 0.77–0.83, p < 0.001); however, the difference did not reach statistical significance for African American patients (adjusted HR 0.80, 95% CI 0.62–1.02, p -value = 0.073). 4.