Y-variable

X-variable

n

r

P-value

TIMP-1:MMP-9

Age (mons)

29

−0.353

0.06

TIMP-1:MMP-9

Parity

29

−0.293

0.12

TIMP-2:MMP-2

Age (mons)

30

−0.102

0.59

TIMP-2:MMP-2

Parity

30

−0.141

0.46