Auricular Acupressure for Managing Postoperative Pain and Knee Motion in Patients with Total Knee Replacement: A Randomized Sham Control Study

Table 3

Generalized estimated equation model of the effects of auricular acupressure on pain medication use.

	𝛽	Standard errors	Wald chi-squared	P value
Intercept	54.16	18.36	8.70	.003
Group (sham control versus acupressure)	8.38	2.73	9.42	.002
Baseline versus Posttest 1	−23.32	2.00	135.47	<.001
Posttest 1 versus Posttest 2	−18.42	1.64	126.25	<.001
Posttest 2 versus Posttest 3	−7.98	1.43	31.27	<.001
BMI	.05	.38	.02	.90
Age	−.19	.18	1.12	.29
Pain score (VAS)	.02	.05	.10	.75