Table 3.

Pearson correlation matrix of dependent variables. ** p < 0.01; * p < 0.05. Bold in order to further highlight statistically significant values.

		Duration	HbA1c	TGFβ1	VEGF-A	PlGF
Diabetes duration	Pearson coefficient	1	0.595 **	0.335 *	0.102	0.084
	Sign. (two tails)		0.000	0.043	0.547	0.622
	N	38	38	38	38	38
HbA1c	Pearson coefficient	0.595 **	1	0.592 **	0.271	0.163
	Sign. (two tails)	0.000		0.000	0.104	0.334
	N	38	38	38	38	38
TGFβ1	Pearson coefficient	0.335 *	0.592 **	1	0.003	−0.132
	Sign. (two tails)	0.043	0.000		0.984	0.436
	N	38	38	38	38	38
VEGF-A	Pearson coefficient	0.102	0.271	0.003	1	−0.156
	Sign. (two tails)	0.547	0.104	0.984		0.358
	N	38	38	38	38	38
PlGF	Pearson coefficient	0.084	0.163	−0.132	−0.156	1
	Sign. (two tails)	0.622	0.334	0.436	0.358
	N	38	38	38	38	38