Figure 4

Progression-free survival for HPV-positive (74 patients) and HPV-negative (26 patients), 2-year PFS: 93.0 (95% CI: 83.4–96.9) and 69.0% (95% CI: 44.4–83.9), P =0.012.

Progression-free survival for HPV-positive (74 patients) and HPV-negative (26 patients), 2-year PFS: 93.0 (95% CI: 83.4–96.9) and 69.0% (95% CI: 44.4–83.9), P =0.012.