The impact of preoperative patient characteristics on health states after total hip replacement and related satisfaction thresholds: a cohort study

Table 2 Changes in WOMAC and EQ-5D

0 worst, 100 best	Pre-operative		6 months follow-up		Change
Preoperative	Mean	SE	Mean	SE	Mean	SE	N
WOMAC pain	55.6	1.1	90.4	0.8	34.7	1.2	281
0-20	12.9	1.3	89.0	2.1	76.1	2.2	14
21-40	33.1	0.8	85.7	2.4	52.6	2.6	45
41-60	51.4	0.5	87.8	1.4	36.4	1.4	110
61-80	70.8	0.6	94.9	0.8	24.1	1.0	89
81-100	87.7	1.0	95.3	1.2	7.7	1.6	23
WOMAC stiffness	46.6	1.4	83.0	1.0	36.5	1.5	281
0-20	14.1	0.8	79.1	2.5	65.0	2.7	56
21-40	33.2	0.7	81.1	2.2	48.0	2.3	66
41-60	53.4	0.6	82.2	2.0	28.8	2.0	86
61-80	71.9	0.8	87.8	1.6	15.8	1.9	60
81-100	91.9	1.3	93.1	3.1	1.2	2.5	13
WOMAC function	51.3	1.1	86.7	0.8	35.5	1.1	281
0-20	16.4	1.0	79.4	3.1	63.4	3.4	21
21-40	33.6	0.6	78.8	2.1	45.3	2.2	69
41-60	50.5	0.6	88.1	1.2	37.5	1.3	96
61-80	69.4	0.6	92.2	0.8	22.8	1.1	77
81-100	85.9	1.0	94.9	1.2	9.0	1.3	18
WOMAC sum	51.8	1.1	86.7	0.8	34.9	1.1	281
0-20	15.2	1.4	84.2	1.7	69.0	2.2	14
21-40	33.7	0.6	79.6	2.1	45.9	2.2	71
41-60	51.2	0.6	87.4	1.2	36.2	1.3	108
61-80	70.3	0.7	91.6	1.0	21.3	1.2	73
81-100	85.4	0.9	93.9	1.3	8.5	1.3	15
EQ-5D index*	53.9	0.9	76.9	0.9	22.9	1.0	281
0-40	33.1	0.5	70.1	2.1	37.1	2.1	69
41-50	46.8	0.3	76.2	2.2	29.3	2.1	41
51-60	54.2	0.2	76.4	1.7	22.2	1.8	70
61-70	65.5	0.3	80.7	1.4	15.3	1.5	53
71-100	76.9	0.6	83.5	1.4	6.7	1.6	48
EQ-5D index**	51.4	1.8	84.7	1.1	33.3	1.8	281
−40	8.8	1.1	79.4	2.5	70.5	2.3	88
41-50	-	-	-	-	-	-	-
51-60	56.8	0.6	85.4	3.3	28.6	3.0	26
61-70	66.6	0.3	84.3	1.8	17.7	1.9	73
71-100	77.9	0.6	89.8	1.3	12.0	1.4	94
EQ-5D VAS	59.6	1.2	78.4	1.1	18.8	1.4	281
0-40	28.0	1.3	74.7	2.8	46.7	2.6	57
41-50	48.3	0.4	70.1	3.4	21.8	3.4	49
51-60	58.4	0.5	74.1	2.8	15.7	2.9	37
61-70	68.8	0.3	81.5	2.5	12.8	2.6	52
71-100	81.9	0.8	85.4	1.3	3.5	1.3	86

ISSN: 1477-7525