Table 4
Rate of healing in the two groups using different parameters
| Outcome variables | Percentage decrease | Statistical significance (Wilcoxon rank sum test) | ||
|---|---|---|---|---|
| Autologous serum group (n = 29) | Umbilical cord serum group (n = 31) | Z value | p Value | |
| Median (range) | Median (range) | |||
| Horizontal diameter | ||||
| Day 3 | 8.3 (−133.3–56.5) | 3.0 (−220.0–57.1) | 0.50 | 0.614 |
| Day 7 | 10.0 (−100.0–100.0) | 24.1 (−14.3–100.0) | 1.16 | 0.244 |
| Day 14 | 11.7 (–60.0–37.5) | 30.4 (–6.1–100.0) | 1.81 | 0.068 |
| Day 21 | 13.1 (–55.0–50.0) | 33.9 (–7.9–100.0) | 1.37 | 0.184 |
| Vertical diameter | ||||
| Day 3 | 9.5 (–210.0–86.8) | 3.2 (–960.0–33.33) | 0.49 | 0.618 |
| Day 7 | 9.8 (–77.1–100.0) | 22.5 (–100.0–100.0) | 0.90 | 0.364 |
| Day 14 | 9.3 (–82.7–53.3) | 23.5 (–100.0–100.0) | 0.96 | 0.333 |
| Day 21 | 11.9(–85.7–53.3) | 20.0 (–100.0–100.0) | 0.35 | 0.724 |
| Area | ||||
| Day 3 | 0.7 (–657.6–82.3) | 11.5 (–1351.6–65.1) | 0.49 | 0.619 |
| Day 7 | 2.9 (–66.5–14.9 ) | 53.0 (–48.0–100.0) | 2.36 | 0.018 |
| Day 14 | 13.8(–42.9–32.5) | 63.0 (0.0–86.7) | 2.72 | 0.013 |
| Day 21 | 6.7 (–41.7–33.1) | 62.7 (0.0–79.6) | 2.57 | 0.009 |
| Perimeter | ||||
| Day 3 | 1.2 (–589.7–73.1) | 13.2 (–366.85–66.34) | 0.59 | 0.558 |
| Day 7 | 3.1 (–38.2–14.3) | 32.5 (–48.6–100.0) | 2.69 | 0.007 |
| Day 14 | 6.5 (–18.4–30.5) | 48.5 (0.0–61.3) | 2.30 | 0.021 |
| Day 21 | 2.7 (–17.8–30.3) | 48.9 (0.0–75.5) | 2.24 | 0.024 |
| Major axis (automated) | ||||
| Day 3 | 3.3 (–121.5–44.6) | 11.3 (–209.5–55.1) | 0.00 | 1.000 |
| Day 7 | 4.8 (–93.8–16.4) | 65.0 (–17.4–100.0) | 2.86 | 0.004 |
| Day 14 | 9.5 (–48.3–26.6) | 62.7 ( 0.0–85.2) | 2.32 | 0.020 |
| Day 21 | 5.6 (–47.9–25.5) | 67.1 (0.0–75.1) | 2.41 | 0.015 |
| Minor axis (automated) | ||||
| Day 3 | 2.9 (–214.4–74.2) | 17.2 (–642.8–41.7) | 0.29 | 0.770 |
| Day 7 | 2.6 (–10.9–23.7) | 54.2 (–75.2–100.0) | 2.64 | 0.008 |
| Day 14 | 4.9 (–4.9–35.8) | 51.0 (–89.4–70.7) | 1.51 | 0.129 |
| Day 21 | 6.2 (–4.9–28.4) | 41.7 (–75.2–64.8) | 1.34 | 0.180 |
