CDKN2A and neoplasm: On univariate Cox proportional hazards analysis, African American race (HR: 1.70; 95% CI: 1.05–2.76), Stage IV AJCC pathologic tumor stage (HR: 3.19; 95% CI: 1.01–10.03), receipt of chemotherapy (HR: 1.68; 95% CI: 1.22–2.33), and CDKN2A copy number loss (HR: 1.54; 95% CI: 1.12–2.11) were associated with poor OS (Table 2).