Table 4 Regression models for HSUVs
Variables | Estimated coefficient ± 95% CI | |||
|---|---|---|---|---|
Age-adjusted | No age adjustment | |||
Coefficient (95% CI) | p value | Coefficient (95% CI) | p value | |
Age | -0.001 (-0.004, 0.002) | 0.502 | - | - |
Health state reference: stable state (n = 32) | ||||
 Progressed state (n = 10) | -0.052 (-0.097, -0.007) | 0.027 | -0.055 (-0.102, -0.008) | 0.021 |
 Advanced state (n = 8) | -0.143 (-0.264, -0.022) | 0.02 | -0.146 (-0.267, -0.024) | 0.055 |
Instrument reference: EQ-5D-3L instrument (n = 43) | ||||
 EQ-5D-5L (n = 7) | 0.176 (0.115, 0.237) |  < 0.001 | 0.176 (0.120, 0.233) | 0.025 |
Treatment reference: surgery alone (n = 3) | ||||
 Surgery adjuvant chemotherapy (n = 20) | 0.205 (0.133, 0.277) |  < 0.001 | 0.209 (0.144, 0.274) | 0.029 |
 Surgery adjuvant radiotherapy (n = 2) | 0.200 (0.141, 0.259) |  < 0.001 | 0.204 (0.157, 0.252) | 0.021 |
 Surgery adjuvant endocrine therapy (n = 5) | 0.085 (0.036, 0.135) | 0.003 | 0.085 (0.040, 0.131) | 0.020 |
 Surgery without specified adjuvant (n = 19) | 0.107 (0.069, 0.144) |  < 0.001 | 0.114 (0.084, 0.144) | 0.013 |
 Unspecified treatment (n = 1) | 0.148 (0.081, 0.215) | <0.001 | 0.136 (0.072, 0.200) | 0.029 |
Valuation time reference: less than one year (n = 19) | ||||
 Over 1 year (n = 31) | 0.045 (0.006, 0.083) | 0.027 | 0.050 (0.012, 0.088) | 0.017 |
 Constant | 0.696 (0.485, 0.908) |  < 0.001 | 0.639 (0.575, 0.703) |  0.029 |
 Observations | 50 | 50 | ||
 R-squared | 0.691 | 0.686 | ||