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The correlation coefficients between the age of the subjects and other variables
| First-time donors | Regular donors (>30 times) | |||
|---|---|---|---|---|
| Parameters | Correlation coefficients | Correlation coefficients | ||
| Statistic | Sig. | Statistic | Sig. | |
| WBC | -0.491 | 0.149 | 0.310 | 0.383 |
| CD34+cells | 0.129 | 0.731 | -0.281 | 0.431 |
| Neutrophils | -0.275 | 0.509 | 0.531 | 0.220 |
| Lymphocytes | -0.447 | 0.267 | -0.089 | 0.849 |
| Monocytes | -0.236 | 0.574 | 0.590 | 0.163 |
| Viability | -0.129 | 0.722 | 0.254 | 0.479 |
