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Mean scores

NRS (rest)
NRS (activity)
EQ5D index score
EQ5D thermometer
HOOS-PS score
Oxford Hip score
Anchor question: Daily functioning

Hip » PROMs » Mean scores » NRS (rest)

FIGURE Mean pre-operative, 3 months and 12 months postoperative NRS (rest) scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean NRS (rest) scores

NRS (rest) score	Pre-operative		3 months postoperative		12 months postoperative
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,389	5.54 (5.48-5.59)	8,411	1.16 (1.13-1.20)	8,354	0.90 (0.86-0.93)
60-74 years	31,946	5.17 (5.14-5.19)	32,023	1.15 (1.13-1.17)	31,797	0.85 (0.83-0.86)
≥75 years	15,556	5.01 (4.97-5.06)	15,520	1.23 (1.20-1.26)	15,388	0.92 (0.89-0.95)
Total	55,897	5.18 (2.16-5.20)	55,960	1.17 (1.16-1.19)	55,545	0.88 (0.86-0.89)

THA: total hip arthroplasty

© LROI 2023

The NRS (rest) score measures pain during rest. The score has a range of 0.0 to 10.0, with 0.0 representing no pain and 10.0 representing the most possible pain.

Hip » PROMs » Mean scores » NRS (activity)

FIGURE Mean pre-operative, 3 months and 12 months postoperative NRS (activity) scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean NRS (activity) scores

NRS (activity) score	Pre-operative		3 months postoperative		12 months postoperative
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,391	7.40 (7.36-7.44)	8,414	2.25 (2.21-2.30)	8,360	1.61 (1.56-1.65)
60-74 years	31,960	7.17 (7.14-7.19)	32,066	2.07 (2.04-2.09)	31,815	1.41 (1.38-1.43)
≥75 years	15,553	7.21 (7.18-7.24)	15,515	2.09 (2.05-2.13)	15,397	1.45 (1.41-1.48)
Total	55,910	7.21 (7.20-7.23)	56,001	2.10 (2.08-2.12)	55,578	1.45 (1.43-1.47)

THA: total hip arthroplasty

© LROI 2023

The NRS (activity) score measures pain during activity. The score has a range of 0.0 to 10.0, with 0.0 representing no pain and 10.0 representing the most possible pain.

Hip » PROMs » Mean scores » EQ5D index score

FIGURE Mean pre-operative, 3 months and 12 months postoperative EQ-5D index scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean EQ-5D index scores

EQ-5D Index score	Pre-operative		3 months postoperative		12 months postoperative
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,390	0.51 (0.50-0.51)	8,328	0.78 (0.78-0.78)	8,268	0.83 (0.83-0.84)
60-74 years	31,922	0.55 (0.54-0.55)	31,661	0.80 (0.80-0.80)	31,385	0.84 (0.84-0.84)
≥75 years	15,445	0.51 (0.51-0.52)	15,209	0.78 (0.78-0.78)	15,068	0.81 (0.80-0.81)
Total	55,763	0.53 (0.53-0.53)	55,204	0.79 (0.79-0.79)	54,727	0.83 (0.83-0.83)

THA: total hip arthroplasty

© LROI 2023

The EQ-5D index score measures quality of life. The score has a range of -0.329 to 1.0, with 1.0 representing the best possible quality of life.

Hip » PROMs » Mean scores » EQ5D thermometer

FIGURE Mean pre-operative, 3 months and 12 months postoperative EQ-5D thermometer scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean EQ-5D thermometer scores

EQ-5D thermometer score	Pre-operative		3 months postoperative		12 months postoperative
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,413	63.6 (63.1-64.0)	8,381	76.9 (76.6-77.3)	8,340	78.8 (78.4-79.2)
60-74 years	31,997	66.8 (66.5-67.0)	31,946	77.6 (77.4-77.8)	31,701	78.3 (78.1-78.5)
≥75 years	15,453	66.0 (65.7-66.3)	15,354	75.0 (74.7-75.3)	15,223	74.4 (74.1-74.7)
Total	55,869	66.1 (65.9-66.2)	55,687	76.8 (76.7-77.0)	55,270	77.3 (77.1-77.5)

THA: total hip arthroplasty

© LROI 2023

The EQ-5D thermometer score measures the health situation. The score has a range of 0.0 to 100.0, with 0.0 representing the worst possible health situation and 100.0 the best possible health situation.

Hip » PROMs » Mean scores » HOOS-PS score

FIGURE Mean pre-operative, 3 months and 12 months postoperative HOOS-PS scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean HOOS-PS scores

HOOS-PS score	Pre-operative		3 months postoperative		12 months postoperative
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,185	49.1 (48.8-49.5)	8,006	17.7 (17.4-18.0)	8,093	12.0 (11.7-12.3)
60-74 years	30,759	47.2 (47.0-47.4)	30,034	16.6 (16.4-16.7)	30,133	12.0 (11.8-12.1)
≥75 years	14,283	48.7 (48.4-49.0)	13,408	18.7 (18.5-19.0)	13,454	15.1 (14.9-15.4)
Total	53,233	47.9 (47.8-48.1)	51,454	17.3 (17.2-17.4)	51,686	12.8 (12.7-12.9)

THA: total hip arthroplasty

© LROI 2023

The HOOS-PS score measures the physical functioning of patients with osteoarthritis to the hip. The score has a range of 0.0 to 100.0, with 0.0 representing no effort and 100.0 the most possible effort.

Hip » PROMs » Mean scores » Oxford Hip score

FIGURE Mean pre-operative, 3 months and 12 months postoperative Oxford Hip scores of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean Oxford Hip scores

Oxford Hip score	Pre-operative		3 months postoperative		12 months postoperative¹
Age category	n	Mean (95% CI)	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	7,873	22.8 (22.6-23.0)	7,802	39.5 (39.3-39.7)	7,753	42.8 (42.6-43.0)
60-74 years	30,128	23.9 (23.8-24.0)	29,902	40.0 (40.0-40.1)	29,639	42.8 (42.7-42.9)
≥75 years	14,526	22.5 (22.4-22.7)	14,183	39.1 (38.9-39.2)	14,052	41.3 (41.1-41.4)
Total	52,533	23.4 (23.2-23.4)	51,893	39.7 (39.6-39.8)	51,450	42.4 (42.3-42.5)

THA: total hip arthroplasty

© LROI 2023

The Oxford Hip score measures the physical functioning and pain of patients with osteoarthritis to the hip. The score has a range of 0.0 to 48.0, with 0.0 representing no functional ability and 48.0 the most functional ability.

Hip » PROMs » Mean scores » Anchor question: Daily functioning

FIGURE Mean 3 months and 12 months postoperative Anchor scores: change in daily functioning of patients who underwent a THA for osteoarthritis by age category in the Netherlands in 2014-2021

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TABLE Mean anchor question: Daily functioning

Anchor question score	3 months postoperative		12 months postoperative¹
Age category	n	Mean (95% CI)	n	Mean (95% CI)
<60 years	8,138	5.90 (5.87-5.92)	8,177	6.16 (6.14-6.19)
60-74 years	31,110	5.83 (5.82-5.84)	31,042	6.04 (6.03-6.06)
≥75 years	15,076	5.63 (5.61-5.65)	14,950	5.72 (5.70-5.74)
Total	54,340	5.78 (5.77-5.80)	54,175	5.97 (5.96-5.98)

THA: total hip arthroplasty

© LROI 2023

The anchor question measures change in daily functioning after joint replacement. The score has a range of 1.0 to 7.0, with 1.0 representing very deteriorated and 7.0 representing very improved.