Table 17. Change of Skin Hydration between Treatment Group and Control Group in Baseline and 6 weeks(1㎝ below the medial aspect of the elbow)

	Descriptives	V2	V4	Difference	p–value
Control Group	n	24	24	24	0.001b
	Mean±SD	26.721±8.879	33.618±5.043	6.897±8.264
	Median	28.517	33.550	4.017
	Min	7.800	24.733	−3.900
	Max	41.267	44.433	25.900
Treatment Group	n	23	23	23	0.000a
	Mean±SD	31.088±11.179	45.100±10.089	14.012±11.089
	Median	29.767	46.000	11.000
	Min	10.333	28.167	−0.066
	Max	54.300	65.233	38.233
p–value		0.144c	0.000c	0.020d

p-value by paired t-test
p-value by Wilcoxon signed rank test
p-value by Independent two-sample t-test
p-value by Mann-Whitney test