TABLE 1.

Palmoplantar Investigator’s Global Assessment (ppIGA)

0 = Clear	No signs of psoriasis, postinflammatory hyperpigmentation may be present
1 = Almost clear/minimal	Coloration: normal to pink Thickening: none Scaling: none to minimal focal
2 = Mild	Coloration: pink to light red Thickening: just detectable to mild Scaling: predominantly fine scaling
3 = Moderate	Coloration: dull to bright red, clearly distinguishable Thickening: clearly distinguishable to moderate Scaling: moderate
4 = Severe	Coloration: bright to deep dark red Thickening: severe with hard edges Scaling: severe/coarse covering almost all/all lesions, numerous fissures