Table 3.

The changes of parameters within each group and the comparison of the values between the two groups at evaluated time points

Parameter	Time (day)	Group		P a
		Experimental (n=25)	Placebo (n=25)
Ulcer size	0	3.44±1.53	4.04±1.74	0.277
	2	2.48±1.87	4.88±1.01	<0.001
	4	2.16±1.57	4.88±1.05	<0.001
	P b	0.002	0.003
	P c	<0.001	0.015
Pain score (VAS)	0	7.60±2.00	7.20±1.93	0.492
	2	4.44±3.52	7.52±1.93	0.002
	4	2.48±3.27	6.88±2.02	<0.001
	P b	<0.001	0.442
	P c	<0.001	0.638

The values represent mean±SD. ^aComparison of the values between the two groups (Mann-Whitney U test); ^bWithin-group comparison of the values between the days 2 and 0 (Wilcoxon signed ranked test); ^cWithin-group comparison of the values between the days 4 and 0 (Wilcoxon signed ranked test). VAS=Visual Analog Scale; SD=Standard deviation