BCL2 and neoplasm: Thus, 5-year DFS or OS in tumours with low and high BSI were 48.2 and 71.7%, respectively (P=0.0005, log-rank test), or 60.7 and 76.1%, respectively (P=0.002, log-rank test), whereas 5-year DFS or OS in patients with positive and negative Bcl-2 levels were 59.9 and 67.3%, respectively (P=0.7), or 69.3 and 71.3%, respectively (P=0.7).