Elements of four global assessment scores in rating psoriasis
| Lattice System Global Psoriasis Score(LS- GPS) | Physician static global assessment (PSGA) score | Physician dynamic global assessment (PDGA) score | Overall lesion assessment(OLA) |
|---|---|---|---|
| Global score | Usually used as a 7 point score | Usually used as a 7 point score | 5 point scale |
| Range: 8 steps (clear to very severe)step scores | 0 = clear; scores 1–6 = increasing severity | 0 = clear; scores of 1–5 = increasing severity; 6 = worsened | 0 = none; 4 = very severe |
| Plaque qualities defined | Requires definition of each score | Requires recall memory or assisted with baseline photograph | Photo guideline provided to assist scoring the two components |
| Weights elevation (induration)preferentially | Component 1 = thickness score, composite of all lesions | ||
| Component 2 = erythema and scaling score, composite of all lesions |