TABLE III.

Association of Pre-Arthroplasty Contralateral Knee Pain with Poor Post-Arthroplasty Function^*

Pre-Arthroplasty Contralateral Pain Score†	Not Attaining Threshold PASS Score‡	Slow Walking Speed‡
0	Reference	Reference
1 to 4	1.8 (0.7 to 4.2)	1.3 (0.5 to 2.9)
5 to 9	2.1 (0.8 to 5.1)	1.3 (0.6 to 3.0)
10+	4.1 (1.5 to 11.5)	1.9 (0.6 to 5.9)

^*Adjusted for sex, body mass index, age at the time of knee arthroplasty, educational attainment, race, depressive symptoms, number of comorbidities, and time before or after knee replacement.

^†Maximum score = 20.

^‡The values are given as the risk ratio, with the 95% CI in parentheses.