Loss of RASSF1A Expression in Colorectal Cancer and Its Association with K-ras Status

Table 2

Association between loss of RASSF1A expression and clinicopathological factors.

Factors	Total cases	Loss of RASSF1A expression
	No.	No. (% of total)	𝜒^2	P
Age
<60	41	22 (53.66%)	0.196	0.658
≥60	35	17 (48.57%)
Sex
Male	44	27 (61.36%)	4.223	0.040
Female	32	12 (37.5%)
Site
Colon	38	24 (63.16%)	4.266	0.039
Rectum	38	15 (39.47%)
Tumor size
<5 cm	55	31 (56.36%)	2.030	0.154
≥5 cm	21	8 (38.10%)
Differentiation grade
Poor	32	13 (40.63%)	2.529	0.112
Moderate-well	44	26 (59.09%)
Invasion depth
T1 + T2	17	11 (64.71%)	1.572	0.210
T3 + T4	59	28 (47.58%)
Tumor stage
I/II/III	56	28 (50%)	0.114	0.736
IV	20	11 (55%)

Bold values represent 𝑃 values which are considered to be statistically significant at <0.05.