Fig. 1
Fig. 2
Demographic characteristics, mean distribution of hemoglobin, blood volume and loss value
| Mean ± SD | 95% CI for mean | |
|---|---|---|
| Gender: male/female [n, %] | 40/6 | 87.0/13.0 |
| Age [years] | 37.48 ± 9.64 | 34.61–40.34 |
| Height [cm] | 177.41 ± 9.13 | 174.7–180.12 |
| Weight [kg] | 85.96 ± 15.44 | 81.37–90.54 |
| Body Mass Index | 27.23 ± 4.09 | 26.02–28.45 |
| Hemoglobin [mg/dl] | 14.91 ± 1.05 | 14.6–15.22 |
| Blood volume [L] | 5.38 ± 0.8 | 5.14–5.62 |
| Blood loss [%] | 8.57 ± 1.43 | 8.14–8.99 |
Average distribution of vital signs pre and post blood donation
| Mean ± SD | 95% CI for mean | P | |
|---|---|---|---|
| Delta SBP (pre-post donation) (standing) | 10.91 ± 11.46 | 7.51–14.32 | 0.000 |
| Delta DBP (pre-post donation) (standing) | 0.13 ± 7.94 | –2.23–2.49 | 0.912 |
| Delta MAP (pre-post donation) (standing) | 3.72 ± 8.27 | 1.27–6.18 | 0.004 |
| Delta PR (pre-post donation) (standing) | –4.13 ± 9.09 | –6.83 – –1.43 | 0.004 |
| Delta SBP (pre-post donation) (lying) | 10.22 ± 12.85 | 6.4–14.03 | 0.000 |
| Delta DBP (pre-post donation) (lying) | 0.89 ± 9.34 | –1.88–3.67 | 0.521 |
| Delta MAP (pre-post donation) (lying) | 4 ± 8.85 | 1.37–6.63 | 0.004 |
| Delta PR (pre-post donation) (lying) | 3.54 ± 6.66 | 1.57–5.52 | 0.001 |
| Delta IVCexp. [mm] (pre-post donation) | 3.66 ± 2.66 | 2.87–4.45 | 0.000 |
| Delta IVCins [mm] (pre-post donation) | 2.35 ± 2.96 | 1.47–3.22 | 0.000 |
| Delta MAPSE [mm] (pre-post donation) | 1.7 ± 1.17 | 1.35–2.04 | 0.000 |
| Paired Sample t test |
Correlation of differences of VCIins, VCIexp and MAPSE variables with the differences of other variables pre-post blood donation
| Delta IVCexp | Delta IVCins. | Delta MAPSE | ||||
|---|---|---|---|---|---|---|
| r | p | R | p | r | p | |
| Delta IVCins | 0.349 | 0.018 | 1.000 | |||
| Delta MAPSE | 0.112 | 0.460 | 0.157 | 0.298 | 1.000 | |
| Delta SBP (pre-post donation) (standing) Delta DBP (pre-post donation) (standing) | –0.158 ¬–0.109 | 0.295 0.472 | –0.082 –0.138 | 0.587 0.359 | –0.111 –0.192 | 0.461 0.202 |
| Delta MAP (pre-post donation) (standing) Delta PR (pre-post donation) (standing) | –0.142 0.068 | 0.345 0.653 | –0.127 –0.131 | 0.402 0.385 | –0.174 –0.192 | 0.247 0.202 |
| Delta SBP (pre-post donation) (lying) Delta DBP (pre-post donation) (lying) | –0.013 0.093 | 0.934 0.538 | –0.047 –0.070 | 0.758 0.645 | –0.034 –0.348 | 0.823 0.018 |
| Delta MAP (pre-post donation) (lying) Delta PR (pre-post donation) (lying) | 0.060 0.334 | 0.694 0.023 | –0.072 0.082 | 0.636 0.590 | –0.262 0.073 | 0.079 0.630 |
| Pearson correlation | ||||||