Table 2.

Correlation between expression of p16 and Ki-67 immunostaining (n)

	p16
Ki-67	Negative	1+	2+	3+	NS	Total
Negative	268	49	7	5	3	332
1+	129	89	84	110	4	416
2+	5	21	25	120	3	174
3+	3	6	5	209	0	223
NS	3	2	1	3	0	9
Total	408	167	122	447	10	1154

Note: 3 cases of p16 staining were not satisfactory (NS).