Table 4.

Statistical results of expression differences of OIS markers among CIN І, CIN П and CIN Ш

	p15INK4b		p16INK4a		p21Waf1/Cip1
	χ2	P	χ2	P	χ2	P
CIN І vs. CIN П	15.938	0.000	0.423	0.515	5.673	0.017
CIN І vs. CIN Ш	35.000	0.000	4.575	0.032	18.453	0.000
CIN П vs. CIN Ш	7.792	0.005	2.169	0.141	4.930	0.026