BIRC5 and neoplasm: We also observed statistically significant effects of survivin expression on tumor stage with HRs of 1.186 (95% CI: 0.060–2.312, P = 0.039), 1.050 (95% CI 0.285–1.815, P = 0.007), and 1.216 (95% CI: 0.233–2.199, P = 0.015) for I–II, I–III, and I–IV, respectively.