Table 4

Rate of healing in the two groups using different parameters

Outcome variablesPercentage decreaseStatistical significance (Wilcoxon rank sum test)
Autologous serum group (n = 29)Umbilical cord serum group (n = 31)Z valuep Value
Median (range)Median (range)
Horizontal diameter
Day 38.3 (−133.3–56.5)3.0 (−220.0–57.1)0.500.614
Day 710.0 (−100.0–100.0)24.1 (−14.3–100.0)1.160.244
Day 1411.7 (–60.0–37.5)30.4 (–6.1–100.0)1.810.068
Day 2113.1 (–55.0–50.0)33.9 (–7.9–100.0)1.370.184
Vertical diameter
Day 39.5 (–210.0–86.8)3.2 (–960.0–33.33)0.490.618
Day 79.8 (–77.1–100.0)22.5 (–100.0–100.0)0.900.364
Day 149.3 (–82.7–53.3)23.5 (–100.0–100.0)0.960.333
Day 2111.9(–85.7–53.3)20.0 (–100.0–100.0)0.350.724
Area
Day 30.7 (–657.6–82.3)11.5 (–1351.6–65.1)0.490.619
Day 72.9 (–66.5–14.9 )53.0 (–48.0–100.0)2.36 0.018
Day 1413.8(–42.9–32.5)63.0 (0.0–86.7)2.72 0.013
Day 216.7 (–41.7–33.1)62.7 (0.0–79.6)2.57 0.009
Perimeter
Day 31.2 (–589.7–73.1)13.2 (–366.85–66.34)0.590.558
Day 73.1 (–38.2–14.3)32.5 (–48.6–100.0)2.69 0.007
Day 146.5 (–18.4–30.5)48.5 (0.0–61.3)2.30 0.021
Day 212.7 (–17.8–30.3)48.9 (0.0–75.5)2.24 0.024
Major axis (automated)
Day 33.3 (–121.5–44.6)11.3 (–209.5–55.1)0.001.000
Day 74.8 (–93.8–16.4)65.0 (–17.4–100.0)2.86 0.004
Day 149.5 (–48.3–26.6)62.7 ( 0.0–85.2)2.32 0.020
Day 215.6 (–47.9–25.5)67.1 (0.0–75.1)2.41 0.015
Minor axis (automated)
Day 32.9 (–214.4–74.2)17.2 (–642.8–41.7)0.290.770
Day 72.6 (–10.9–23.7)54.2 (–75.2–100.0)2.64 0.008
Day 144.9 (–4.9–35.8)51.0 (–89.4–70.7)1.510.129
Day 216.2 (–4.9–28.4)41.7 (–75.2–64.8)1.340.180