Supplementary Figure 4 from Plasma Cell-Free Human Papillomavirus DNA and Oral Gargle HPV DNA in Patients with HPV-Related Oropharyngeal Cancer Treated with Radiotherapy

Supplemental Figure 4: Oral Gargle HPV DNA Collected at Weekly Intervals from Weeks 1 to 4 and Their Associations with Reduction of Target Tumor Volume (TTV) at Week 4. A) Comparison of the reduction of TTV at week 4 in patients with versus without week 4 oral gargle cfHPV DNA clearance; B) week 1 oral gargle cfHPV DNA clearance; C) week 2 oral gargle cfHPV DNA clearance; and D) week 3 oral gargle cefHPV DNA clearance. Positive (i.e. >0) numbers represent tumor volume reduction while negative (i.e. <0) numbers represent tumor volume increase. Statistical test represents Mann-Whitney Test between the 2 groups overlaid by the bolded line. The median and upper and lower quartiles are represented in the bar graphs.