Table 3.

Associations between 24‐month outcomes and 6‐month improvement trajectories

Analyses	24‐mo WOMAC Pain			24‐mo WOMAC Function
	Group 1: Optimal Early Pain Improvement (n = 67)	Group 2: Suboptimal Early Pain Improvement (n = 40)	P	Group 1: Optimal Early Functional Improvement (n = 66)	Group 2: Suboptimal Early Functional Improvement (n = 41)	P
Unadjusted analysis, mean (SE), median	3.1 (0.9), 0	11.7(3.6), 5	0.005	3.7 (1.0), 0.7	16.9 (3.4), 13.2	0.000
Adjusted analysis, mean (SE)	4.0 (1.5)	11.6 (2.1)	0.004	5.6 (1.5)	15.1 (2.1)	0.001
Adjusted analysis after MI, mean (SE)	8.0(3.0)	14.2 (3.2)	0.033	10.9 (2.2)	17.9 (2.1)	0.008

Abbreviation: MI, multiple imputation.