Table 1.

Comparison of WIF1 and β-catenin expression in NCE, CIN, and CC.

Variable	Cases (number)	β-Catenin			WIF1
		Negative	Positive	p a	Negative	Positive	p a
CC	196	63	133 (67.9%)	<0.01b	149	47 (24.0%)	<0.001c
CIN	39	22	17 (43.6%)		16	23 (59.0%)
NCE	41	27	14 (34.1%)		17	24 (58.5%)

^aThe p value was determined using the χ ² test. ^b p < 0.01 was found in the ratio of β-catenin positive expression when compared to CC and CIN or CC and NCE; ^c p < 0.001 was found in the ratio of WIF1 positive expression when compared to CC and CIN or CC and NCE; no significant differences were observed when comparing CIN and NCE.