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Data Quality
Mean scores
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
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 (5.16-5.20) | 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
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
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
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
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
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
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