Training Self-Administered Acupressure Exercise among Postmenopausal Women with Osteoarthritic Knee Pain: A Feasibility Study and Lessons Learned

Table 3

Intention-to-treat design WOMAC subscale scores and score changes.

WOMAC subscales	Acupressure group (𝑛=15)		Control group (𝑛=21)		Repeated measure	Mann-Whitney
	Score	Score change	Score	Score change	ANOVA, 𝑃^a	𝑈 test, 𝑃^b
Pain					0.83
Baseline (0–6 week)	13.53±2.61	−0.87±1.96	14.95±3.71	−1.14±2.08		0.55
6 week (6–12 week)	12.66±2.87	0.27±2.43	13.81±4.18	0.05±2.25		0.49
12 week (0–12 week)	13.93±3.39	−0.60±2.87	13.85±4.05	−1.10±2.64		0.51
Stiffness					0.33
Baseline (0–6 week)	6.53±1.64	−1.07±2.15	6.77±1.26	−0.37±1.47		0.47
6 week (6–12 week)	5.47±1.96	0.27±1.16	6.38±2.02	0.28±1.15		0.66
12 week (0–12 week)	5.73±2.01	−0.80±2.14	6.67±2.08	−0.10±1.41		0.29
Physical function					0.52
Baseline (0–6 week)	48.33±15.25	−6.37±9.57	48.85±13.49	−3.54±4.31		0.51
6 week (6–12 week)	42.07±13.33	0.94±7.45	45.47±14.50	−0.46±6.38		0.51
12 week (0–12 week)	43.07±13.13	−5.43±10.17	44.95±13.13	−4.00±6.08		0.98
Total scores					0.95
Baseline (0–6 week)	68.10±18.34	−8.31±12.47	70.57±17.92	−5.06±6.64		0.80
6 week (6–12 week)	60.20±14.93	1.47±10.88	65.71±20.15	−0.13±8.35		0.53
12 week (0–12 week)	61.73±17.58	−6.83±14.03	65.47±18.52	−5.19±8.34		0.76

^aRepeated measure ANOVA controlled for age, baseline BMI, and baseline knee pain rating.
^bMann-whitney 𝑈 test performed for all subscale score changes.