Table 3

Primary analysis excluding deaths. Health utilities for the TKR plus non-surgical treatment group and the non-surgical treatment group at baseline and at 3 months, 6 months, 12 months and 24 months follow-up

Utilities	TKR +non-surgical group						Non-surgical group
Utilities	Baseline	3 months	6 months	12 months	24 months	24 months (discounted)	Baseline	3 months	6 months	12 months	24 months	24 months (discounted)
Mean	0.658	0.848	0.866	0.858	0.878	0.853	0.680	0.780	0.755	0.795	0.758	0.736
SD	0.160	0.145	0.141	0.180	0.155	0.151	0.148	0.118	0.158	0.153	0.199	0.193
Median	0.723	0.824	0.824	0.919	1.000	0.971	0.723	0.776	0.776	0.776	0.776	0.753
25th	0.655	0.776	0.776	0.774	0.723	0.702	0.655	0.723	0.718	0.723	0.723	0.702
75th	0.723	1.000	1.000	1.000	1.000	0.971	0.771	0.824	0.824	1.000	0.838	0.814
N	47	39	41	41	43	43	49	45	48	48	47	47

discounted= that is, future health utilities value converted to present health utilities value.
TKR, total knee replacement.