White blood cell parameters
| Mean WBC count (× 103/µL) | Per cent recovery | Mean fold increase | Coefficient of variation (%) | Mean platelet:WBC ratio | p Value (2-tailed paired t test) vs LR-PRP system | |
|---|---|---|---|---|---|---|
| Whole blood | 4.9 | 100.0 | 1.0 | NA | 46 | <0.001 |
| LP-PRP | 1.0 | 4.1 | 0.2 | 100 | 486 | <0.001 |
| LR-PRP | 19.3 | 44.9 | 4.0 | 26 | 92 | NA |
| PPP | 0.0 | 0.0 | NA | NA | NA | NA |
LP-PRP, leucocyte-poor platelet-rich plasma system; LR-PRP, leucocyte-rich platelet-rich plasma system; NA, not applicable; PPP, platelet-poor plasma; WBC, white blood cells.