Table 2 Discriminatory validity of the EQ-5D index and EQ VAS scores with patient characteristics
Characteristics | EQ-5D index score | EQ VAS | ||||||
|---|---|---|---|---|---|---|---|---|
N | Median (IQR) | Mean Rank | p-value | Median (IQR) | Mean Rank | p-value | ||
Tumor stage | ||||||||
| Â | Stage 1 | 110 | 0.91 (0.11) | 236.0 | 0.001 | 80 (11.3) | 249.6 | 0.001 |
| Â | Stage 2 | 158 | 0.88 (0.10) | 180.6 | 65 (15.0) | 177.4 | ||
| Â | Stage 3 | 65 | 0.82 (0.37) | 132.0 | 60 (20.0) | 122.2 | ||
| Â | Stage 4 | 35 | 0.81 (0.39) | 138.1 | 55 (30.0) | 127.8 | ||
ECOG performance | ||||||||
| Â | 1 | 298 | 0.91 (0.10) | 194.1 | 0.001 | 70 (20.0) | 200.0 | 0.001 |
| Â | 2 | 67 | 0.86 (0.26) | 151.4 | 60 (20.0) | 126.3 | ||
| Â | 3 | 4 | 0.38 (0.67) | 69.3 | 42.5 (53.0) | 49.80 | ||
Age categories | ||||||||
| Â | Less than 35 | 27 | 0.91 (0.14) | 210.6 | 0.456 | 70 (10.0) | 228.3 | 0.001 |
|  | 35–60 | 296 | 0.89 (0.13) | 183.8 | 70 (20.0) | 191.5 | ||
| Â | Greater than 60 | 48 | 0.88 (0.13) | 185.4 | 60 (20.0) | 128.5 | ||
Treatment modalities | ||||||||
| Â | Surgery alone | 127 | 0.91 (0.09) | 227.5 | 0.001 | 80 (25.0) | 243.6 | 0.001 |
| Â | Chemotherapy | 29 | 0.91 (0.11) | 205.8 | 65 (20.0) | 186.0 | ||
| Â | Radiotherapy | 48 | 0.85 (0.31) | 147.9 | 60 (23.8) | 135.8 | ||
| Â | Chemoradiation | 93 | 0.85 (0.33) | 149.5 | 60 (20.0) | 136.5 | ||
|  | Surgery + chemotherapy | 69 | 0.86 (0.09) | 181.4 | 70 (10.0) | 185.2 | ||