Skip to main content

Table 5 Correlations of differences between post-op and pre-op scores

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

  Difference (95 % confidence interval) z-test compared to correlation with howRu
Hip Replacement
 OHS vs. howRu (MCO) 0.77 (0.66–0.85)  
 OHS vs. EQ-5D Index 0.64 (0.63–0.64) z = 2.36, p = 0.018
 OHS vs. EQ-VAS 0.33 (0.32–0.34) z = 5.77, p < 0.0001
 EQ-5D Index vs. EQ-VAS 0.31 (0.30–0.32)  
Knee Replacement
 OKS vs. howRu (MCO) 0.86 (0.75–0.92)  
 OKS vs. EQ-5D Index 0.59 (0.58–0.60) z = 3.86, p = 0.0001
 OKS vs. EQ-VAS 0.32 (0.31–0.33) z = 6.02, p < 0.0001
 EQ-5D Index vs. EQ-VAS 0.28 (0.27–0.29)