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Table 3 Mean pre-op and post-op scores and the mean change after surgery (post-op score minus pre-op score) using 0–100 scales

From: Performance of EQ-5D, howRu and Oxford hip & knee scores in assessing the outcome of hip and knee replacements

0–100 scale mean
  Pre-op score Post-op score Change after surgery (Post-op minus Pre-op)
Hip Replacements
 NHS PROMs (n = 29,129)
 OHS 38.0 80.1 42.2
 EQ-5D Index 59.7 85.7 26.0
 EQ-VAS 65.4 75.6 10.2
 MCO (n = 74)
 OHS 41.6 85.4 43.9
 HowRu 55.2 87.7 32.5
Knee Replacements
 NHS PROMs (n = 29,907)
 OKS 39.4 71.2 31.8
 EQ-5D Index 62.9 81.8 18.9
 EQ-VAS 67.6 72.2 4.6
 MCO Knee Replacements (n = 42)
 OKS 40.3 76.7 36.4
 HowRu 56.5 82.1 25.6