One-year Oxford knee scores should be used in preference to 6-month scores when assessing the outcome of total knee arthroplasty

Table 2 Independent predictors associated with change in the OKS from 6 to 12 months after TKA

Demographic	Descriptive	Change in OKS	95% CI	P value
BMI		−0.07	− 0.13 to − 0.02	0.011
Comorbidity	Not present	Reference
Comorbidity	Diabetes mellitus	−1.2	−2.07 to −0.30	< 0.001
Functional measures
OKS	Preoperative	0.14	0.10 to 0.18	< 0.001
OKS	6 Months	−0.31	−0.37 to − 0.26	< 0.001
EQ 5D	6 Months	4.80	2.66 to 6.94	< 0.001

Linear regression analysis: all significant (p < 0.05) variables or variables with a trend towards statistical significance (p < 0.1) were entered into the model. The R² value of the model was 0.12
TKA total knee arthroplasty, OKS Oxford Knee Score; EQ 5D EuroQoL 5-Dimension questionnaire, BMI body mass index, CI confidence interval

ISSN: 2234-2451