. 2020 Jan 20;2020:8093526. doi: 10.1155/2020/8093526

Table 2.

Changes of VAS score and serum COMP in peat intervention and control group.

	Group	Before intervention		After intervention		p value (intragroup analysis)^‡
	Group	Mean ± SD	p value (intergroup analysis)^†	Mean ± SD	p value (intergroup analysis)^†	p value (intragroup analysis)^‡
VAS score	Peat group (n = 22)	6.000 ± 1.633	0.605	3.409 ± 1.333	0.066	<0.001^∗
VAS score	Control group (n = 19)	5.737 ± 1.593		4.421 ± 1.953		<0.001^∗

VAS score difference	Peat group (n = 22)			2.591 ± 1.333	<0.001^∗
VAS score difference	Control group (n = 19)			1.316 ± 0.885

Serum COMP (ng/ml)	Peat group (n = 22)	2.872 ± 0.937	0.612	2.706 ± 0.627	0.426	0.310
Serum COMP (ng/ml)	Control group (n = 19)	3.038 ± 1.120		2.921 ± 1.005		0.156

SD: standard deviation. ^∗p < 0.05, significant difference at intergroup and intragroup comparing. ^†Comparison between peat intervention and control groups, Mann–Whitney test. ^‡Comparison between before- and afterintervention in each group, Wilcoxon signed-rank test.