Table 3.

EQ-5D-3L descriptives by EQ-VAS subgroups and by improvement status

Hip replacement						Knee replacement
EQ-VAS subgroups	Impr.	N (%)	Mean pre-op EQ-5D	Mean post-op EQ-5D	Mean EQ-5D Change	EQ-VAS subgroups	Impr.	N (%)	Mean pre-op EQ-5D	Mean post-op EQ-5D	Mean EQ-5D Change
0 to 34	No	1304 (5%)	0.0472	0.254	0.207	0 to 36	No	2915 (14%)	0.101	0.258	0.157
	Yes	24,660 (95%)	0.0806	0.719	0.638		Yes	18,355 (86%)	0.156	0.652	0.495
35 to 55	No	2499 (5%)	0.264	0.390	0.127	37 to 56	No	5643 (12%)	0.292	0.384	0.092
	Yes	48,121 (95%)	0.278	0.776	0.498		Yes	41,444 (88%)	0.326	0.72	0.395
56 to 72	No	2484 (4%)	0.405	0.449	0.044	57 to 72	No	6573 (10%)	0.415	0.461	0.046
	Yes	55,347 (96%)	0.395	0.821	0.426		Yes	59,135 (90%)	0.437	0.774	0.338
73 to 86	No	2120 (4%)	0.431	0.493	0.062	73 to 86	No	5875 (8%)	0.477	0.516	0.039
	Yes	57,110 (96%)	0.440	0.858	0.418		Yes	67,113 (92%)	0.495	0.819	0.324
87 to 100	No	1077 (3%)	0.435	0.501	0.066	87 to 100	No	3336 (7%)	0.488	0.526	0.038
	Yes	35,886 (97%)	0.458	0.886	0.428		Yes	44,119 (93%)	0.517	0.850	0.332

Note “Impr.” Indicates whether the patients improved or not: “Yes” indicates patients who answered “a little better” or “much better” to the question from the variable “Success”; “No” indicates patients that replied otherwise; N = number of observations (percentages over the subgroup sample in brackets); EQ-5D = EQ-5D-3L