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Table 7 Effect sizes of the cancer severity variables

From: The ability of cancer-specific and generic preference-based instruments to discriminate across clinical and self-reported measures of cancer severities

  Mean score (SD)
  QLQ-C30 FACT-G EQ-5D SF-6D HUI-2 HUI-3
Stage of cancer       
   1-2 74.44 (15.43) 85.47 (13.18) 0.84 (0.14) 0.73 (0.09) 0.87 (0.12) 0.80 (0.22)
   3-4 66.85 (21.61) 80.20 (14.36) 0.83 (0.14) 0.72 (0.11) 0.82 (0.14) 0.74 (0.23)
Effect size 0.49* 0.40* 0.06* 0.10* 0.36* 0.24*
ECOG-PS score 1       
   0 76.43 (17.79) 86.12 (11.24) 0.86 (0.16) 0.77 (0.11) 0.88 (0.09) 0.83 (0.19)
   1-3 64.90 (20.70) 79.27 (14.83) 0.81 (0.11) 0.71 (0.10) 0.81 (0.15) 0.72 (0.22)
Effect size 0.65* 0.61* 0.31* 0.57* 0.50* 0.57*
Self-reported health status       
   Excellent-good 76.92 (16.06) 86.45 (10.93) 0.87 (0.13) 0.76 (0.09) 0.88 (0.11) 0.83 (0.19)
   Fair-very poor 54.57 (17.83) 73.01 (15.05) 0.75 (0.12) 0.66 (0.09) 0.75 (0.14) 0.63 (0.23)
Effect size 1.39 1.23 0.90 1.13 1.18 1.04
  1. * Comparison of mean values (using ANOVA), p < 0.05.
  2. 1Eastern Cooperative Oncology Group performance status