CCNB1 and esophageal cancer: In the stratified analysis by cancer types, cyclin B1 overexpression was associated with worse 3-year OS of lung cancer (OR = 2.95, 95% CI = 1.64 to 5.30, P = 0.0003) (Figure 3A), and esophageal cancer (OR = 4.95, 95% CI = 2.58 to 9.50, P < 0.00001) (Figure 3B).