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 3 Various factors’ concentrations as a function of gender

Variable	Male	Female	P by Wilcoxon’s rank sum test
Variable	N = 20	N = 19	P by Wilcoxon’s rank sum test
PDGF-BB (ng/ml)	3.5 [1.4, 6.5]	2.9 [1.5, 5.3]	0.31
TGF-β1(ng/ml)	15.6 [11.3, 31.9]	15.2 [11.1, 18.7]	0.20
VEGF (pg/ml)	240 [41, 591]	140 [21, 725]	0.47
IGF-1 (ng/ml)	68 [47, 105]	70 [48, 139]	0.40
EGF (pg/ml)	765 [226, 1736]	697 [489, 938]	0.69
FGF (pg/ml)	11 [4, 40]	10 [4, 20]	0.35
HGF (pg/ml)	479 [338, 733]	443 [285, 675]	0.074
PLT (×10⁴ /μL)	23 [16, 34]	24 [18, 31]	0.87
PLT (PRP) (×10⁴ /μL)	43 [23, 82]	37 [27, 53]	0.37