Table 1.

The results of β-catenin expression examination at various stages of NPC

β-catenin expression	Stages				Amount	%
	I	II	III	IV
Negative (−)	0	0	0	1	1	2.50
Weak positive (+)	0	0	1	0	1	2.50
Moderate positive (++)	1	2	14	13	30	75.00
Strong positive (+++)	0	0	1	7	8	20.00
Total	1	2	16	21	40	100.00

p = 0.060