Table 2.

Matrix metalloproteinase-9-1562 cytosine/ thymine genotype and allele distribution in Group A and Group B

	Group A, n (%)	Group B, n (%)	P
MMP-9 genotype
C/C	20 (100)	15 (75)	0.29*
C/T	0	5 (25)	0.06*
T/T	0	0	0
MMP-9 allele
C	40 (100)	35 (87.5)	0.63*
T	NI	5 (12)	0.18*

*Nonsignificant (P<0.05 was considered as significant). MMP-9 – Matrix metalloproteinase-9; n – Number of subjects; NI – Not identified; P – Probability value; C – Cytosine; T – Thymine