Table 3.
Model Parameters
| Class 1 | Class 2 | |||
|---|---|---|---|---|
| Class Proportions | 0.635 | 0.365 | ||
| Utility Parameters | Parameter | T-Ratio | Parameter | T-Ratio |
| (Reference category: Oral – Low frequency 2–3 times/weekly) | ||||
| Oral – High Frequency (Daily) | 1.149 | 2.36 | 0.130 | 0.73 |
| Intravenous – Low Frequency (Fortnightly/Monthly) | 0.473 | 1.04 | −0.401 | −2.75 |
| Intravenous – High Frequency (2–3 times/weekly) | −0.235 | −0.88 | −0.907 | −4.99 |
| Subcutaneous – Low Frequency (Fortnightly/Monthly) | 0.622 | 1.57 | −0.166 | −1.11 |
| Subcutaneous – High Frequency (2–3 times/weekly) | −0.439 | −1.38 | −0.572 | −3.84 |
| (Reference category: Free £0) | ||||
| Out-of-pocket cost – £400/800 | −0.028 | −0.11 | −0.263 | −2.12 |
| Out-of-pocket cost – £1200 | −0.327 | −1.03 | −0.402 | −2.8 |
| Out-of-pocket cost – £1600 | −0.279 | −0.79 | −0.612 | −4.22 |
| (Reference category: 1 year) | ||||
| Average survival – 3 years | 6.101 | 5.93 | 0.672 | 3.89 |
| Average survival – 5 years | 9.610 | 8.29 | 1.578 | 9.73 |
| Average survival – 7 years | 11.843 | 9.11 | 2.194 | 13.35 |
| Average survival – 9 years | 14.034 | 9.74 | 2.619 | 14.51 |
| (Reference category: Long remission period) | ||||
| Short remission period | −1.986 | −7.72 | −0.598 | −6.72 |
| (Reference category: Low to medium risk of mild-to-moderate side effects) | ||||
| No mild-to-moderate side effects | 0.418 | 1.12 | 0.414 | 2.69 |
| High risk of mild-to-moderate side effects | −0.724 | −4.01 | −0.181 | −1.81 |
| (Reference category: Low risk of severe side effects) | ||||
| No severe side effects | 0.555 | 1.84 | 0.545 | 4.23 |
| High risk of severe side effects | −0.438 | −1.82 | −0.155 | −1.61 |
| Neither treatment (constant) | −4.939 | −4.04 | −0.267 | −1.21 |
| Class membership – Class 1 (Reference category: Class 2) |
||||
| Constant | 0.699 | 3.46 | ||
| Living alone | −0.874 | −2.59 | ||
| Diagnosed recently | 0.386 | 1.68 | ||
| Experienced severe side effects | −0.479 | −1.97 | ||
| 419 participants, Number of choice observations: 4190. Log likelihood −1951.59 | ||||