Table-I.

The expression of HPV16/ 18 DNA and p53 protein in breast cancer, breast fibroadenoma and normal breast tissues

Group	n	HPV16/ 18 DNA			p53 protein
		positive	(%)		positive	(%)
Normal breast tissue	20	1	5. 0		0	0
Breast fibroadenoma	20	3	15. 0●		2	10. 0●
Invasive ductal carcinoma	45	23	51. 1♦		21	46. 7♦

Compared to Normal breast tissue and breast fibroadenoma group: X²=12. 641, X²=7. 523,

X²=13. 788, X²=10. 736,

^♦ P< 0. 01; Compared to normal tissues: X²=0. 598, X²=0. 526,

^● P> 0. 05.