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

Table 2

Per-protocol design WOMAC subscale scores and score changes.

WOMAC subscales	Acupressure group (𝑛=8)		Control group (𝑛=16)		Repeated measure	Mann-Whitney
	Score	Score change	Score	Score change	ANOVA, 𝑃^a	𝑈 test, 𝑃^b
Pain					N/A
Baseline (0–6 week)	13.75±3.33	−1.30±2.31	14.44±2.99	−1.33±2.20		0.91
6 week (6–12 week)	12.63±3.70	0.50±3.42	13.06±3.34	0.44±2.00		0.49
12 week (0–12 week)	13.13±4.49	−0.63±3.93	13.50±3.20	−1.11±2.79		0.78
Stiffness					N/A
Baseline (0–6 week)	6.75±1.67	−1.60±2.50	6.56±1.03	−0.61±1.69		0.41
6 week (6–12 week)	5.13±2.30	0.50±1.60	5.94±1.77	0.31±1.30		0.45
12 week (0–12 week)	5.63±2.45	−1.13±2.90	6.25±1.65	−0.05±1.39		0.28
Physical function					0.02*
Baseline (0–6 week)	56.71±16.60	−9.78±11.04	48.93±10.39	−4.18±4.50		0.07
6 week (6–12 week)	43.86±13.06	1.00±9.97	44.40±11.21	1.00±6.55		0.98
12 week (0–12 week)	42.43±15.97	−14.29±8.48	44.93±12.48	−4.61±6.52		0.03*
Total scores					N/A
Baseline (0–6 week)	77.29±21.48	−13.22±14.17	70.40±13.19	−6.18±7.08		0.24
6 week (6–12 week)	61.00±18.46	2.00±14.60	63.80±15.25	1.75±8.81		0.88
12 week (0–12 week)	59.71±21.42	−17.57±13.40	64.93±16.69	−5.94±8.85		0.07

^aRepeated measure ANOVA performed only when ANOVA assumptions were met. N/A indicates that ANOVA assumptions were not met.
^bMann-Whitney 𝑈 test performed for all subscale score changes.
* 𝑃<0.05.