Figure 2.
Serum HIF-1α, VEGF, uPA levels and correlation analysis. A. Control population (n = 51) and OSCC patients (n = 160). B. OSCC patients with different clinical stages (I-II, n = 67; III-IV, n = 93). C. OSCC patients with non-lymphatic metastases (n = 96) and metastases (n = 64). D. Correlation analysis of serum HIF-1α, VEGF and uPA. The data are expressed as the median, and the Mann-Whitney U or Kruskal-Wallis H test compare the differences, and r is the correlation coefficient. ***P < 0.001; **P < 0.01; *P < 0.05.
