Functional Polymorphisms of Matrix Metalloproteinases 1 and 9 Genes in Women with Spontaneous Preterm Birth

Table 3

The association of genotypes and alleles of MMP-1-1607 1G/2G and MMP-9-1562 C/T gene polymorphisms with SPTB according to dominant, recessive, and codominant genetic models.

Gene	Genetic model	SPTB women versus control women
		OR (95% CI)
MMP-1-1607	Dominant
	1G1G + 1G2G versus 2G2G	1.25 (0.68–2.30)	0.475
	Recessive
	1G1G versus 1G2G + 2G2G	0.96 (0.51–1.81)	0.902
	Codominant
	1G1G versus 2G2G	1.15 (0.53–2.51)	0.725
	1G1G versus 1G2G	0.89 (0.46–1.73)	0.736
	2G2G versus 1G2G	0.78 (0.41–1.47)	0.435
	Alleles
	1G versus 2G	1.07 (0.74–1.54)	0.721
MMP-9-1562	Dominant
	CC + CT versus TT	0.95 (0.02–48.27)	0.979
	Recessive
	CC versus CT + TT	1.38 (0.77–2.47)	0.277
	Codominant
	CC versus TT	1.03 (0.02–52.82)	0.986
	CC versus CT	1.38 (0.77–2.47)	0.277
	TT versus CT	1.33 (0.02–69.00)	0.986
	Alleles
	C versus T	1.31 (0.77–2.24)	0.319