Role of HPV-16 in Pathogenesis of Oral Epithelial Dysplasia and Oral Squamous Cell Carcinoma and Correlation of p16INK4A Expression in HPV-16 Positive Cases: An Immunohistochemical Study

Table 2

Histopathological grading of OSCC and HPV 16 positivity.

Degree of differentiation	HPV 16 positive (%)	HPV 16 negative (%)
Well	5 (71.44%)	8 (61.14%)
Moderate	1 (14.28%)	4 (30.77%)
Poor	1 (14.28%)	1 (7.69%)
Total	7 (35%)	13 (65%)

Z test, significant, 𝑃<0.05.