Table 3. Means and standard deviation of IHC scores, correlation between proteins in each group.

Group	IHC mean(SD)			Pearson Correlation(p-value/R-value)
	MMP9	BGH3	PDIA3	MMP9/BGH3	BGH3/PDIA3	PDIA3/MMP9
NOM	21.2(16.0)	12.5(14.4)	0.0	0.285/0.321	▲	▲
OLK	38.9(55.3)	42.5(48.2)	99.4(108.5)	0.001/0.685☆	0.476/0.169	0.227/0.283
OSCC	116.8(65.2)	99.9(72.3)	215.0(77.7)	0.002/0.512☆	0.240/0.204	0.762/0.053
ANOVA test	P = 0.000★	P = 0.000★	P = 0.000★

★IHC score mean difference is significant at the 0.001 level.

☆correlation is significant at 0.01level(2-tailed).

▲can’t be calculated.