PASI calculator

PASI Score Calculator

PASI Calculation

Plaque Characteristic Rating Score Body Region (and weighting factor)
Head (0.1) Upper Limbs (0.2) Trunk (0.3) Lower Limbs (0.4)
Erythema 0=None
1=Slight
2=Moderate
3=Severe
4=Very Severe
Thickness Same as above
Scaling Same as above
Sum of scores (A) A1 = A2 = A3 = A4 =
Multiply A by region weight (Head x0.1, Upper x0.2, Trunk x0.3, Lower x0.4) B1 = B2 = B3 = B4 =
Area Involvement Score 0 = None
1 = 1-9%
2 = 10-29%
3 = 30-49%
4 = 50-69%
5 = 70-89%
6 = 90-100%
Region Totals (C) = B x Area Score C1 = C2 = C3 = C4 =
TOTAL PASI SCORE: 0.0