Table III.

Responsiveness estimates of effect size and standardized response mean (SRM) of the Oxford Knee Score (OKS), EuroQol 5 dimensions (EQ-5D), and Patient-Reported Outcomes Measurement Information System (PROMIS)-10

PROMs	Effect size 3 mths postoperative, Cohen d, (95% CI); p-value	Standardized response mean 3 mths postoperative, (95% CI); p-value	Effect size 6 mths postoperative; Cohen d, (95% CI); p-value	Standardized response mean 6 mths postoperative (95% CI); p-value	Effect size 12 mths postoperative, Cohen d, (95% CI); p-value	Standardized response mean 12 mths postoperative (95% CI); p-value
OKS	1.63 (1.51 to 1.75); < 0.05	1.44 (1.33 to 1.55); < 0.05	1.95 (1.84 to 2.08); < 0.05	1.73 (1.61 to 1.85); < 0.05	1.97 (1.82 to 2.12); < 0.05	1.78 (1.64 to 1.92); < 0.05
EQ-5D	0.80 (0.71 to 0.88); < 0.05	0.72 (0.64 to 0.80); < 0.05	0.92 (0.83 to 1.01); < 0.05	0.83 (0.74 to 0.92); < 0.05	0.98 (0.88 to 1.08); < 0.05	0.87 (0.77 to 0.96); < 0.05
EQ-5D VAS	0.26 (0.17 to 0.34); < 0.05	0.24 (0.16 to 0.32); < 0.05	0.30 (0.22 to 0.38); < 0.05	0.29 (0.21 to 0.37); < 0.05	0.27 (0.19 to 0.35); < 0.05	0.26 (0.18 to 0.34) < 0.05
PROMIS Physical Health	1.16 (1.06 to 1.27); < 0.05	1.06 (0.96 to 1.15); < 0.05	1.30 (1.19 to 1.40); < 0.05	1.20 (1.11 to 1.32); < 0.05	1.22 (1.11 to 1.34); < 0.05	1.09 (0.98 to 1.19); < 0.05
PROMIS Mental Health	0.01 (-0.07 to 0.08)*	0.01 (-0.07 to 0.08)*	0.04 (-0.03 to 0.12)*	0.04 (-0.03 to 0.12)*	0.02 (-0.06 to 0.10)*	0.02 (-0.06 to 0.10)*

^*Not statistically significant (p > 0.05)

PROMs, patient-reported outcome measures; CI, confidence interval; VAS, visual analogue scale