Table 2.

Extent of lymphedema before and after treatment in acupuncture (AC) and wait-list (WL) groups

	Acupuncture (N = 36)		Wait-list (N = 37)		Adjusted difference between AC and WL groups at week 6 (95% confidence interval)	p value
	Baseline	Week 6	Baseline	Week 6
Difference in arm circumference (cm)	4.74 (2.23)	4.29 (2.67)	4.82 (2.32)	4.76 (2.68)	− 0.38 (− 0.89, 0.12)	0.14
	Acupuncture (N = 34)		Wait-list (N = 35)		Difference with 95% confidence interval	p value
	Baseline	Week 6	Baseline	Week 6
Bioimpedance	38.6 (30.4)	35.9 (27.4)	42.2 (32.2)	40.3 (35.6)	− 1.06 (− 7.85, 5.72)	0.8

Extent of lymphedema assessed using difference in arm circumference between affected and unaffected arms and bioimpedance measurements. The unadjusted mean (SD) is reported at baseline and week 6 for both acupuncture and wait-list groups. The adjusted mean difference (95% CI) for extent of lymphedema is presented as the difference in week 6 measurement (arm circumference difference or bioimpedance) between acupuncture and wait-list groups, adjusted for the baseline measurement. A negative difference in arm circumference between groups indicates a greater reduction in arm circumference among acupuncture patients. A negative difference in bioimpedance between groups indicates a greater reduction in lymphedema in the acupuncture groups