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Table 2 Coefficients of the predictive equations of utilities (EQ-5D) based on the Oxford Hip Score (OHS). Estimation sample

From: Mapping analysis to predict EQ-5D-5 L utility values based on the Oxford Hip Score (OHS) and Oxford Knee Score (OKS) questionnaires in the Spanish population suffering from lower limb osteoarthritis

  OLS Tobit GLM Beta regression
Hip OA
 OHS1: Usual level of pain   0.0400 Ŧ (0.0143) −0.156§ (0.0374) 0.2346Ŧ (0.0772)
 OHS2: Difficulty with washing and drying 0.0578§ (0.0110) 0.0564§ (0.0107) −0.0885§ (0.0219) 0.2080§ (0.0444)
 OHS3: Difficulty with cars/public transport 0.0466§ (0.0129) 0.0561§ (0.0139) −0.123§ (0.0343) 0.4317§ (0.0730)
 OHS5: Grocery shopping alone    −0.0504* (0.0215) 0.0985* (0.0398)
 OHS6: Walking duration before pain 0.0269§ (0.00768) 0.0262§ (0.0076)   0.0895* (0.0404)
 OHS8: Pain from standing up from chair 0.0517§ (0.0118) 0.0402 Ŧ (0.0128) −0.0633* (0.0289)  
 OHS11: Pain that interferes with work 0.0941§ (0.0108) 0.0814§ (0.0115) −0.165§ (0.0324) 0.2070§ (0.0521)
 OHS12: Pain at night     0.0615* (0.0312)
 Constant −0.0292 (0.0292) −0.0365 (0.0301) 0.232§ (0.0392) −1.6057§ (0.2008)
 Observations 352 351 352 350
 Adjusted R2 0.697 0.715   
 Sigma   0.168 (0.007)   
 AIC −256 − 213.4 −323 − 652.5
 BIC −232.8 − 182.9 − 295.9 − 617.8
  1. Questions 4,7,9, and 10 of the OHS did not fit any model
  2. OLS Ordinary least squares
  3. GLM Generalized linear model. Link function: log. Distributional family: Gaussian
  4. Standard errors in parentheses
  5. *p < 0.05
  6. Ŧp < 0.01
  7. §p < 0.001