Assessment of Vascular Endothelial Growth Factor in Fresh versus Frozen Platelet Rich Plasma

Table 2

Platelet yield of fresh and one-week and three-week frozen/thawed PRP.

	Platelet count ×10^3/L	Platelet yield	value
	(mean ± SD)	(mean ± SD)
Whole blood	282 ± 56
Fresh PRP	991.4 ± 378	3.5 ± 0.9	<0.001
Frozen PRP; (1 week)	453.2 ± 158	1.7 ± 0.6	<0.001
Frozen PRP; (3 weeks)	441.6 ± 154	1.6 ± 0.6	0.001

Statistically significant difference ().