Table 2.

Results in patients with pressure leg ulcers.

	Group	Average ± SD		P
		Before therapy	After therapy
Total ulcer surface area (cm2)	I	30.23 ± 29.17	19.23 ± 23.88	0.005
	II	34.88 ± 36.12	21.07 ± 26.02	0.005
	III	32.87 ± 31.33	8.42 ± 14.23	<0.001
	IV	30.89 ± 31.83	20.07 ± 27.23	0.005

*Wilcoxon test.