Table 4.

Pain Reduction During Total Joint Replacement Admissions Receiving Acupuncture

Day	#Acupuncture Applications	Mean Pre-Pain Level	Mean Pain Reduction After Acupuncture (95% CI)	p-value
Hip and Knee Admissions
Any Day-post Surgery	1,977	4.23	1.91 (1.83 - 1.99)	<0.001
1st Day-post Surgery	1,259	4.61	1.79 (1.69 - 1.89)	<0.001
2nd Day-post Surgery or Later	718	3.57	2.14 (2.01 - 2.26)	<0.001
Knee Admissions
Any Day-post Surgery	1,395	4.41	1.84 (1.74 - 1.94)	<0.001
1st Day-post Surgery	872	4.84	1.66 (1.54 - 1.79)	<0.001
2nd Day-post Surgery or Later	523	3.67	2.14 (1.98 - 2.29)	<0.001
Hip Admissions
Any Day-post Surgery	584	3.80	2.09 (1.95 - 2.22)	<0.001
1st Day-post Surgery	388	4.06	2.06 (1.89 - 2.23)	<0.001
2nd Day-post Surgery or Later	196	3.28	2.13 (1.92 - 2.35)	<0.001

CI = Confidence Interval.

Notes: Includes total hip and total knee replacement admissions that elected acupuncture in the total joint replacement program at Abbott Northwestern Hospital between January 1st, 2010 and December 31st, 2012. Excludes all acupuncture applications for patients with a missing pre- or post-pain score or who indicated no pre-pain prior to receiving acupuncture.