Fig. (1) Kaplan and Meier curves of DSS related to HPV E6/E7 mRNA expression detected by NASBA. High-risk HPV E6/E7 mRNA negative cases (n = 16) had a significantly worse DSS than those cases with detectable high-risk HPV E6/E7 mRNA (n = 186) (p = 0.03). The p-value differs slightly from that in Table 3 due to the use of the log-rank test as opposed to the Cox regression analysis in Table 3.