Table 2. Expression of NALP-1 in normal colon mucosa and cancer tissues.

Tissue sample	Expression of NALP-1					P (χ2 test)
	N	−	±	+	++
Normal mucosa	50	14	16	16	4	<0.001*
Colon cancer	50	33	14	3	0

P-value is based on χ² test

NALP1 expression of clinical tissue samples was scored as follows: no intense pattern, negative (−); <10% immunoreactivity, weak (±); 10–50% immunoreactivity, moderate (+); and >50% immunoreactivity, strong (++)

*Significant difference