Table 1. Simple descriptive scale (SDS) domains and scores (Murrell et al., 2014).
| General condition | Normal | 0 |
| Mildly affected | 1 | |
| Severely affected | 2 | |
| Lying/listless | 3 | |
| Appetite | Normal | 0 |
| Mildly reduced (<50%) | 1 | |
| Severely reduced (≥50%) | 2 | |
| Anorexic | 3 | |
| Mobility | Normal | 0 |
| Mildly reduced (<25%) | 1 | |
| Moderately reduced (25%–50%) | 2 | |
| Severely reduced (>50) | 3 | |
| Lameness | Absent | 0 |
| Mild: walk is intermittently abnormal | 1 | |
| Moderate: walks abnormally continuously and / or keeps limb high intermittently | 2 | |
| Severe: keeps limb up high permanently | 3 |