Table 4.

Agreement between HPV status and cell-cycle proteins in HNSCC tumours

	HPV	p16	p53	Cyclin D1	pRb
HPV	1.00
p16	0.766**	1.00
p53	0.132	0.224**	1.00
Cyclin D1	- 0.005	0.01	0.177*	1.00
pRb	- 0.001	0.077	0.222**	0.160*	1.00

**p < 0.01, **correlation is significant at 0.01 level (2-tailed)

*p < 0.05, *correlation is significant at 0.05 level (2-tailed)