Table 2.

Overall changes in WOMAC scores of the participants between enrolment on the pre-surgery waiting lists and 6 months after TKA (n = 141)

	Mean score at enrolment†(SD)	Mean score 6 months after TKA†(SD)	Change in score‡(SD)	95% CI	Comparison between time points(p value)
WOMAC
Pain	53.1 (17.9)	22.5 (17.1)	- 30.6 (21.8)	- 26.9 to - 34.2	<0.001*
Stiffness	59.3 (19.7)	33.3 (21.1)	- 26.0 (20.4)	- 21.2 to - 30.8	<0.001*
Function	53.5 (14.3)	28.1 (17.9)	- 25.4 (20.5)	- 22.0 to - 28.8	<0.001*
Total score	55.3 (15.2)	28.0 (16.3)	- 27.3 (15.8)	- 23.6 to - 31.0	<0.001*

SD: standard deviation.

CI: confidence interval.

^†Scores presented as standardised scores. Lower scores sign a better condition.

^‡Negative changes in score sign an improvement of the condition.

*p < 0.05.