Effectiveness of Different Pain Control Methods in Patients with Knee Osteoarthritis after Knee Arthroplasty

Table 10

GEE analysis of the highest pain rating variation in relation to group and anesthetic method ().

Parameters	Estimate value	Standard error	Wald chi-square	value
Intercept	2.96	.272	118.827	<.001
Time
T1 versus T0	4.763	.300	252.000	<.001
T2 versus T0	3.429	.301	129.760	<.001
T3 versus T0	2.141	.290	54.420	<.001
T4 versus T0	1.339	.286	21.850	<.001
Anesthetic method
GA versus SA	1.053	.362	8.459	.004

Note: GEE = generalized estimating equations; ; ; T₀: recovery room (day of surgery); T₁: ward (day of surgery); T₂: postoperative day 1; T₃: postoperative day 2; T₄: postoperative day 3.