Table 2.

Concurrent and Predictive Validity

Concurrent Validity (Spearman’s Coefficients)
	EQ-5D-5L		EQ-VAS
Preoperative	0.72 (Good)		0.31 (Fair)
6 Weeks	0.65 (Good)		0.46 (Fair)
6 Months	0.69 (Good)		0.49 (Fair)
Predictive Validity
	6 Weeks		6 Months
	Average Marginal Effect (Standard Error)	Model (Link)	Average Marginal Effect (Standard Error)	Model (Link)
OKS	0.33 (0.05)	Gamma (Negative Inverse)	0.37 (0.06)	Gamma (Negative Inverse)
EQ-5D-5L index	0.25 (0.03)	Gaussian (Identity)	0.23 (0.04)	Gaussian (Identity)
EQ-VAS	0.34 (0.04)	Gamma (Negative Inverse)	0.31 (0.04)	Gamma (Negative Inverse)

OKS Oxford Knee Score