TABLE 2.
Mean ± 1 SD, median, and quartiles of reactive hyperemia variables and Mann–Whitney U test results between groups
| Reactive hyperemia variables (unit) | Pressure injury developed prior to discharge | P | r | |
|---|---|---|---|---|
| Yes (n = 2) | No (n = 9) | |||
| Mean ± 1 SD Median (1st‐3rd quartile) | Mean ± 1 SD Median (1st‐3rd quartile) | |||
| Baseline skin blood flow (perfusion unit) |
27.40 ± 12.30 27.40 (23.05–31.75) |
44.36 ± 32.05 35.75 (21.00–62.16) |
.267 | 0.25 |
| Peak skin blood flow (perfusion unit) |
80.93 ± 63.87 80.93 (58.34–103.51) |
161.50 ± 100.20 116.97 (85.41–226.53) |
.200 | 0.33 |
| Normalised peak skin blood flow (%) |
300.00 ± 292.74 300.00 (196.50–403.50) |
326.39 ± 166.35 339.50 (230.25–395.00) |
.556 | 0 |
| Perfusion area (perfusion unit) |
2674.37 ± 2478.33 2674.37 (1789.15 – 3550.59) |
5449.77 ± 4740.03 3313.66 (2191.09 – 9175.17) |
.356 | 0.17 |