Table 2. The r-values (the rho values) derived by Spearman’s rank correlation (p-values, two-sided).

	Age	Axial length	DM duration	HbA1C level	MMP-1 level	MMP-9 level
Age		-0.20 (0.35)	0.04 (0.86)	0.15 (0.58)	-0.48 (0.01)	-0.18 (0.38)
Axial length	-0.20 (0.35)		-0.13 (0.56)	0.36 (0.18)	-0.17 (0.44)	-0.59 (<0.01)
DM duration	0.04 (0.86)	-0.13 (0.56)		0.52 (0.05)	0.23 (0.26)	0.49 (0.01)
Hb1AC level	0.15 (0.58)	0.36 (0.18)	0.52 (0.05)		0.20 (0.48)	0.25 (0.38)
MMP-1 level	-0.48 (0.01)	-0.17 (0.44)	0.23 (0.26)	0.20 (0.48)		0.63 (<0.01)
MMP-9 level	-0.18 (0.38)	-0.59 (<0.01)	0.49 (0.01)	0.25 (0.38)	0.63 (<0.01)

MMP, matrix metalloproteinase; HbA1C, glycated hemoglobin