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