Psoriasis Area and Severity Index (PASI)
Quantifies plaque-psoriasis severity across 4 body regions.
INSTRUCTIONS
Apply the result as an educational summary of plaque psoriasis severity.
Head/neck erythema*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Head/neck induration/thickness*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Head/neck desquamation/scaling*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Percentage of head/neck affected*0%0
1-9%+1
10-29%+2
30-49%+3
50-69%+4
70-89%+5
90-100%+6
Upper limbs erythema*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Upper limbs induration/thickness*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Upper limbs desquamation/scaling*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Percentage of upper limbs affected*0%0
1-9%+1
10-29%+2
30-49%+3
50-69%+4
70-89%+5
90-100%+6
Trunk erythema*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Trunk induration/thickness*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Trunk desquamation/scaling*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Percentage of trunk affected*0%0
1-9%+1
10-29%+2
30-49%+3
50-69%+4
70-89%+5
90-100%+6
Lower limbs erythema*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Lower limbs induration/thickness*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Lower limbs desquamation/scaling*None0
Slight+1
Moderate+2
Severe+3
Very severe+4
Percentage of lower limbs affected*0%0
1-9%+1
10-29%+2
30-49%+3
50-69%+4
70-89%+5
90-100%+6
Result:
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