Table 6. Impaired welfare weights (IWWs) for the 35 welfare impediments.
| Welfare impediment | IWW (VAS) | IWW (TTO) |
|---|---|---|
| Mild-moderate heart failure (with treatment) | 0.357 (0.305–0.411) | 0.337 (0.304–0.372) |
| Severe heart failure (with treatment) | 0.646 (0.524–0.755) | 0.655 (0.575–0.728) |
| Cancer: diagnosis and primary therapy | 0.728 (0.599–0.833) | 0.752 (0.673–0.821) |
| Cancer: lung metastasis with/without having metastasis in other parts of the body | 0.757 (0.679–0.824) | 0.857 (0.823–0.887) |
| Musculoskeletal problems: one limb, mild | 0.387 (0.332–0.444) | 0.368 (0.332–0.405) |
| Musculoskeletal problems: one limb, moderate | 0.760 (0.637–0.858) | 0.793 (0.720–0.854) |
| Musculoskeletal problems: one limb, severe | 0.786 (0.675–0.872) | 0.829 (0.767–0.879) |
| Severe vision impairment and blindness | 0.602 (0.490–0.707) | 0.604 (0.530–0.675) |
| Overweight | 0.504 (0.420–0.588) | 0.494 (0.438–0.550) |
| Obesity | 0.406 (0.348–0.467) | 0.389 (0.350–0.428) |
| Spinal hyperesthesia: mild | 0.777 (0.661–0.868) | 0.815 (0.749–0.870) |
| Spinal hyperesthesia: more severe | 0.740 (0.612–0.843) | 0.767 (0.689–0.833) |
| Ataxia, paraparesis or tetraparesis | 0.504 (0.420–0.587) | 0.494 (0.437–0.549) |
| Non-ambulatory paraparesis or paraplegia | 0.740 (0.614–0.843) | 0.767 (0.691–0.833) |
| Non-ambulatory paraparesis or paraplegia: on wheelchair some hours a day | 0.641 (0.520–0.750) | 0.649 (0.570–0.722) |
| Non-ambulatory tetraparesis or tetraplegia | 0.795 (0.698–0.872) | 0.846 (0.795–0.888) |
| Urinary incontinence (upper motor neuron) | 0.747 (0.621–0.848) | 0.776 (0.700–0.840) |
| Urinary incontinence (lower motor neuron) | 0.783 (0.670–0.871) | 0.825 (0.762–0.876) |
| Anaemia: mild | 0.224 (0.163–0.295) | 0.203 (0.165–0.247) |
| Anaemia: moderate | 0.693 (0.565–0.803) | 0.711 (0.629–0.783) |
| Anaemia: severe | 0.795 (0.696–0.872) | 0.845 (0.793–0.888) |
| Pruritus and discomfort: mild | 0.560 (0.459–0.657) | 0.556 (0.489–0.621) |
| Pruritus and discomfort: moderate | 0.748 (0.623–0.849) | 0.778 (0.702–0.842) |
| Pruritus and discomfort: severe | 0.750 (0.624–0.850) | 0.780 (0.704–0.843) |
| Respiratory distress | 0.796 (0.713–0.865) | 0.857 (0.815–0.892) |
| Polyuria and polydipsia | 0.332 (0.282–0.386) | 0.312 (0.279–0.347) |
| Vomiting: two times or more a day | 0.796 (0.709–0.866) | 0.855 (0.811–0.892) |
| Diarrhoea: two times or more a day | 0.502 (0.418–0.586) | 0.492 (0.436–0.548) |
| Abdominal pain or discomfort | 0.741 (0.613–0.844) | 0.768 (0.691–0.835) |
| Lethargy and loss of appetite | 0.736 (0.609–0.840) | 0.763 (0.685–0.830) |
| Fever | 0.796 (0.700–0.871) | 0.848 (0.799–0.889) |
| Amputation: one limb | 0.134 (0.072–0.223) | 0.117 (0.078–0.168) |
| Frequent veterinary visits (for fearful dogs) | 0.244 (0.185–0.310) | 0.223 (0.186–0.264) |
| Frequent subcutaneous injections by carers at home | 0.555 (0.455–0.652) | 0.551 (0.484–0.616) |
| Death | 0.562 (0.460–0.659) | 0.558 (0.491–0.624) |
Legends: IWWs range from 0 (the optimal welfare imaginable) to 1 (the worst welfare imaginable). The two sets of IWWs were anchored by visual analogue scale (VAS) and time trade-off (TTO), respectively, after excluding the anchoring welfare impediment “respiratory distress” in the model building process.