Acupuncture at the P6 Acupoint to Prevent Postoperative Pain after Craniotomy: A Randomized, Placebo-Controlled Study

Table 2

Patient-reported pain scores over time.

	Acupuncture group (N = 58)	Sham acupuncture group (N = 59)	values
VAS pain score 0–24 h after operation	3 (2–5)	3 (3–5)	0.064
VAS pain score 24–48 h after operation	3 (0–4)	4 (3–5)	0.002
VAS pain score 48–72 h after operation	2 (0–4)	3 (2–3)	0.254