Growth factor levels in leukocyte-poor platelet-rich plasma and correlations with donor age, gender, and platelets in the Japanese population

Journal of Experimental Orthopaedics

Table 4 Spearman’s correlation coefficients for platelet counts in platelet rich plasma and growth factor levels

Growth factors	Correlation of platelet counts in PRP	p
PDGF-BB	0.39	0.015
TGF-β1	0.75	< 0.001
VEGF	0.08	0.69
EGF	0.71	< 0.001
FGF	0.17	0.296
HGF	0.48	0.002
IGF-1	−0.08	0.63