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Table 3 EQ-5D index-based utility scores by ECOG grade, overall and lung cancer

From: Estimation of minimally important differences in EQ-5D utility and VAS scores in cancer

Cancer Group ECOG Grade Utility score n Mean SD Med Min Max Mean Diff SEM 0.50 SD 0.33 SD
All 0 UK 122 0.85 0.16 0.85 0.16 1.00   0.09 0.08 0.05
   US   0.89 0.11 0.84 0.51 1.00   0.06 0.06 0.04
  1 UK 258 0.73 0.20 0.74 -0.14 1.00 0.13 0.12 0.10 0.07
   US   0.78 0.14 0.81 0.21 1.00 0.10 0.08 0.07 0.05
  2 UK 133 0.63 0.21 0.69 -0.11 1.00 0.09 0.12 0.11 0.07
   US   0.72 0.14 0.77 0.28 1.00 0.07 0.08 0.07 0.05
  3 UK 21 0.48 0.28 0.52 0.02 1.00 0.16 0.16 0.14 0.09
   US   0.61 0.19 0.60 0.26 1.00 0.11 0.11 0.10 0.06
Mean weighted MID UK 534       0.12 0.11 0.10 0.07
   US        0.09 0.08 0.07 0.05
Lung 0 UK 9 0.78 0.15 0.73 0.62 1.00   0.08 0.07 0.05
   US   0.83 0.11 0.80 0.71 1.00   0.06 0.05 0.04
  1 UK 29 0.68 0.24 0.80 0.08 1.00 0.10 0.14 0.12 0.08
   US   0.74 0.17 0.82 0.31 1.00 0.09 0.10 0.09 0.06
  2 UK 11 0.55 0.18 0.62 0.29 0.76 0.13 0.10 0.09 0.06
   US   0.67 0.12 0.71 0.45 0.83 0.07 0.07 0.06 0.04
  3 UK 1 0.52 -- 0.52 0.52 0.52 0.03    
   US   0.60 -- 0.60 0.60 0.60 0.07    
Mean Weighted MID UK 50       0.11 0.12 0.10 0.07
   US        0.09 0.08 0.07 0.05
  1. ECOG – Eastern Cancer Oncology Group (grade ranges from level 0 is fully active to level 3, capable of only limited self-care and confined to bed more than 50% of waking hours); MID – minimally important difference; UK – United Kingdom; US – United States; SEM – standard error of the mean; SD – standard deviation