Expression High risk oral lesion
(n = 10) 		OSCC
(n = 26) 		P-value
Laminin-332 γ2 in basement membrane
Continuous 60% (n = 6) 0 0.000a
Discontinuous 40% (n = 4) 69.2% (n = 18)
Absence 0 30.8% (n = 8)
Laminin-332 γ2 in epithelium
BL 10% (n = 1) 35% (n = 7) 0.2103
BL+SL 90% (n=9) 65% (n = 13)
MMP-9 in epithelium
BL 50% (n = 5) 35% (n = 7) 0.4072
SL 30% (n = 3) 20% (n = 4)
BL+SL 20% (n = 2) 45% (n = 9)
MMP-9 stroma/field
< 25% cells/field 40% (n = 4) 11,5% (n = 3) 0.0086a
25 - 50% cells/field 50% (n = 5) 15,4% (n = 4)
> 50% cells/field 10% (n = 1) 73.1% (n = 19)

aChi-square test (significance level P < 0.05).
OSCC = oral squamous cell carcinoma; MMP = matrix metalloproteinase; BL = basal layer; SL = suprabasal layer.