| Plaque Characteristic | Rating Score | Body region and weighting factor | |||
|---|---|---|---|---|---|
| Head | UpperLimbs | Trunk | LowerLimbs | ||
| Erythema | 0=None | ||||
| 1=Slight | |||||
| Thickness | 2=Moderate | ||||
| Scaling | 3=Severe | ||||
| 4=Very Severe | |||||
| Totals | |||||
| Weighting Factor | × 0.1 | × 0.2 | × 0.3 | × 0.4 | |
| Surface area totals | |||||
| Degree of involvement as % for each body region affected (score each region between 0 and 6) | 0=None | ||||
| 1=1-9% | |||||
| 2=10-29% | |||||
| 3=30-49% | |||||
| 4=50-69% | |||||
| 5=70-89% | |||||
| 6=90-100% | |||||