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Table 7 Hip – patients’ perception of improvement (%) (using the paired data-specific MCID [Eq. 4])

From: Assessing responsiveness of the EQ-5D-3L, the Oxford Hip Score, and the Oxford Knee Score in the NHS patient-reported outcome measures

Instrument Measure Total Much better A little better About the same A little worse Worse
OHS    (N = 181,424) (N = 155,899) (N = 15,565) (N = 3891) (N = 2382) (N = 1633)
Observed   51% 58% 10% 4% 1% 1%
  AUCa 0.8 0.8 0.8 0.8 0.7 0.8
Predicted Pre-op. 53% 62% - - - -
  Pre-op., age, gender, comorbidity 54% 62% - - - -
EQ-5D-3L    (N = 171,423) (N = 147,638) (N = 14,577) (N = 3625) (N = 2216) (N = 1493)
Observed   44% 46% 39% 29% 21% 13%
  AUC 0.9 0.9 0.9 0.8 0.8 0.7
Predicted Pre-op. 48% 47% 43% 11% 4% 6%
  Pre-op., age, gender, comorbidity 48% 47% 41% 11% 4% 6%
  1. aArea under the receiver operating characteristic (ROC) curve