From: Mapping SF-36 onto the EQ-5D index: how reliable is the relationship?
EQ-5D utility score | Random effects GLS | Random effects tobit | CLAD | Franks et al. [3] | Gray et al. [4] | ||
---|---|---|---|---|---|---|---|
 | (1) | (2) | (3) | (4) | (5) |  |  |
Mean error | Â | Â | Â | Â | Â | Â | Â |
   <0 | -0.340 | -0.266 | -0.260 | -0.260 | -0.269 | -0.252 | -0.213 |
   0–0.249 | -0.241 | -0.219 | -0.217 | -0.216 | -0.237 | -0.144 | -0.144 |
   0.25–0.499 | -0.191 | -0.189 | -0.191 | -0.182 | -0.219 | -0.064 | -0.081 |
   0.5–0.6.99 | 0.098 | 0.072 | 0.070 | 0.081 | 0.052 | 0.201 | 0.135 |
   0.7–0.799 | -0.004 | -0.024 | -0.024 | 0.023 | -0.044 | 0.095 | 0.056 |
   0.8–0.899 | 0.041 | 0.034 | 0.034 | 0.089 | 0.004 | 0.167 | 0.114 |
   0.9–1.0 | 0.064 | 0.086 | 0.085 | 0.178 | 0.025 | 0.154 | 0.123 |
   Full index | -0.001 | 0.000 | 0.000 | 0.041 | -0.031 | 0.101 | 0.059 |
Mean absolute error | Â | Â | Â | Â | Â | Â | Â |
   <0 | 0.340 | 0.271 | 0.266 | 0.266 | 0.278 | 0.254 | 0.272 |
   0–0.249 | 0.244 | 0.238 | 0.238 | 0.236 | 0.260 | 0.175 | 0.278 |
   0.25–0.499 | 0.202 | 0.215 | 0.219 | 0.210 | 0.247 | 0.136 | 0.282 |
   0.5–0.699 | 0.138 | 0.131 | 0.130 | 0.123 | 0.122 | 0.211 | 0.210 |
   0.7–0.799 | 0.105 | 0.098 | 0.095 | 0.063 | 0.102 | 0.147 | 0.145 |
   0.8–0.899 | 0.106 | 0.088 | 0.085 | 0.089 | 0.092 | 0.183 | 0.172 |
   0.9–1.0 | 0.086 | 0.086 | 0.085 | 0.178 | 0.092 | 0.154 | 0.123 |
   Full index | 0.138 | 0.129 | 0.127 | 0.142 | 0.133 | 0.178 | 0.186 |
Mean squared error | Â | Â | Â | Â | Â | Â | Â |
   <0 | 0.132 | 0.099 | 0.097 | 0.097 | 0.110 | 0.082 | 0.135 |
   0–0.249 | 0.078 | 0.080 | 0.080 | 0.078 | 0.095 | 0.048 | 0.123 |
   0.25–0.499 | 0.061 | 0.066 | 0.067 | 0.060 | 0.085 | 0.032 | 0.102 |
   0.5–0.699 | 0.028 | 0.028 | 0.028 | 0.026 | 0.026 | 0.060 | 0.094 |
   0.7–0.799 | 0.017 | 0.015 | 0.014 | 0.009 | 0.018 | 0.034 | 0.052 |
   0.8–0.899 | 0.019 | 0.015 | 0.014 | 0.015 | 0.016 | 0.051 | 0.065 |
   0.9–1.0 | 0.015 | 0.013 | 0.013 | 0.034 | 0.013 | 0.037 | 0.042 |
   Full index | 0.033 | 0.030 | 0.030 | 0.033 | 0.033 | 0.048 | 0.076 |