Korean Journal of Acupuncture

Table. 7. Table 7

Changes in VAS and KODI according to the Onset

	Visit	Subjects with back pain continuing After 2017(n=5)				Subjects with back pain continuing Before 2017(n=23)				p-value^†

		Mean±SD	Median	Min∼max	p-value*	Mean±SD	Median	Min∼max	p-value*
VAS^‡	Difference (Visit 14-Visit 2)	−2.36±0.98	−2.70	−3.10∼−0.70	0.0057	−1.73±1.50	−1.30	−4.80∼0.70	＜.0001	0.3812
KODI^§	Difference (Visit 14-Visit 2)	−7.40±3.51	−6.00	−11.00∼−3.00	0.0625^¶	−5.39±4.52	−5.00	−17.00∼1.00	＜.0001^¶	0.2499^¶

within group comparison,

†

between group comparison,

‡

Visual analog scale,

Korean Oswestry disability index, Paired t-test,

Wilcoxon’s signed rank test.