Table 3.

Changes in outcomes from baseline to 26 weeks in acupuncture and control groups

	Acupuncture group			Control group			Between-group difference at 26 weeks
	Baseline, mean (SD), n = 39	26 weeks, mean (SD), n = 33	Within group change, mean (95% CI)	Baseline, mean (SD), n = 41	26 weeks, mean (SD), n = 38	Within group change, mean (95% CI)	Unadjusted mean (95% CI)	Adjusted for baseline scorea, mean (95% CI), Pvalue
MYMOP	4.3 (1.1)	3.3 (1.3), n = 33	−1.0 (−0.4 to −1.5)	4.6 (0.9)	4.0 (1.2), n = 38	−0.6 (−0.3 to −0.9)	−0.8 (−1.4 to −0.2)	−0.6 (0 to −1.1), P = 0.05
Adjusted for missing data		3.5 (1.3), n = 33b			4.0 (1.2), n = 41b			−0.4 (−0.9 to 0.1), P = 0.12
EQ-5D index	0.47 (0.33)	0.53 (0.33), n = 32	0.06 (−0.04 to 0.16)	0.42 (0.35)	0.47 (0.37), n = 32	0.05 (−0.06 to 0.16)	0.06 (−0.11 to 0.24)	0.03 (−0.11 to 0.16), P = 0.70
Adjusted for missing data		0.52 (0.32), n = 39b			0.46 (0.35), n = 41b			0.02 (−0.13 to 0.08), P = 0.66
W-BQ12	15.6 (6.8)	20.3 (7.0), n = 32	4.3 (2.1 to 6.5)	15.3 (7.1)	15.4 (8.4), n = 36	0.0 (−1.9 to 1.8)	4.8 (1.1 to 8.6)	4.4 (1.6 to 7.2), P = 0.002
Adjusted for missing data		18.5 (7.7), n = 39b			14.8 (8.4), n = 41b			3.4 (0.5 to 6.3), P = 0.02b
	Totalc, n = 39, rate/year	Totald, n = 39, rate/year	Within-group rate ratio (95% CI)	Totalc, n = 41, rate/year	Totald, n = 40, rate/year	Within-group rate ratio (95% CI)	Unadjusted rate ratio (95% CI)	Adjusteda, rate ratio (95% CI)
Consultations	653, 16.7	258, 13.2	0.79 [0.67 to 0.93]	615, 15.4	233, 11.9	0.76 [0.64 to 0.90]	1.13, (0.84 to 1.53)	0.90, (0.70 to 1.15), P = 0.40

SD = standard deviation.

^aAdjusted for baseline score differences.

^bImputed values (baseline value carried forward): adjustment formissing data.

^cOver previous 12 months.

^dOver previous 6 months.