TABLE 3.

As-Treated Results of Mixed Model Analysis

	Partial Meniscectomy vs Physical Therapy			Delayed Partial Meniscectomy vs Physical Therapy
	n	Between-Group Differencea (95% CI)	P Value	n	Between-Group Differencea (95% CI)	P Value
Crude b
3 mo	133 vs 91	0.3 (–0.3 to 1.0)	.31	43 vs 91	2.0 (1.1 to 2.8)	<.001
6 mo	144 vs 91	–0.3 (–0.9 to 0.4)	.386	40 vs 91	1.3 (0.4 to 2.2)	.005
12 mo	123 vs 81	–0.7 (–1.4 to –0.1)	.033	32 vs 81	1.1 (0.1 to 2.0)	.026
24 mo	133 vs 90	–0.6 (–1.3 to 0.0)	.049	40 vs 90	0.6 (–0.3 to 1.5)	.193
Overall	533 vs 353	–0.2 (–0.8 to 0.2)	.209	155 vs 353	1.3 (0.6 to 1.9)	<.001
Adjusted c
3 mo	133 vs 91	–0.1 (–0.7 to 0.6)	.843	43 vs 91	1.7 (0.8 to 2.6)	<.001
6 mo	144 vs 91	–0.7 (–1.3 to 0.0)	.05	40 vs 91	1.1 (0.2 to 2.1)	.024
12 mo	123 vs 81	–1.0 (–1.7 to –0.3)	.007	32 vs 81	1.0 (–0.01 to 2.0)	.053
24 mo	133 vs 90	–0.7 (–1.3 to 0.02)	.059	40 vs 90	0.8 (–0.1 to 1.8)	.094
Overall	533 vs 353	–0.6 (–1.1 to –0.1)	.025	155 vs 353	1.2 (0.5 to 1.9)	.001

^aNegative values indicate that the difference is in favor of partial meniscectomy.

^bCrude analyses, only corrected for the baseline Patient-Specific Functional Scale score.

^cAdjusted analyses, with additional correction for potential confounders.