Table 3.

Changes in VAS between control group and acupuncture group.

	Control (n = 14)			Acupuncture (n = 45)			P value
	Median	Q1	Q3	Median	Q1	Q3
ΔVAS2-VAS1	0.0	0	0	−2.0	−4	−1	<0.001∗
ΔVAS3-VAS1	−1.5	−3	0	−4.0	−5	−1	0.370
ΔVAS3-VAS2	−1.5	−3	0	−1.0	−3	2	0.181

P value by Mann-Whitney U test.

Q₁: Percentile 25.

Q₃: Percentile 75.

^*Statistically significant difference (P < 0.05).

ΔVAS2-VAS1, changes of VAS-2 and VAS-1; ΔVAS3-VAS1, changes of VAS-3 and VAS-1; ΔVAS3-VAS2, changes of VAS-3 and VAS-2.