Table III.

Comparison of S100P expression levels between polypoid and ulcerative colorectal cancer.

	S100P expression scorea				Overexpressionc, n (%)	P-value
	0b	1–3	4–5	6–7
Ulcerative (n=40)	0	13	21	6	6 (15)	<0.001
Polypoid (n=30)	0	0	6	24	24 (80)

^aScoring was performed as described in Materials and methods.

^bS100P protein expression level was defined as follows: 0, negative; 1–3, weak; 4–5, moderate; and 6–7, strong.

^cTumors with an expression score of 6–7 were defined as showing S100P overexpression.