The Bullous Pemphigoid Disease Activity Index (BPDAI) includes several measures of bullous pemphoid. One of these measures pigmentation. The authors are from multiple sites from around the world.
Patient selection: bullous pemphigoid
(4) left arm
(5) right arm
(9) back and buttocks
(10) left leg
(11) right leg
total score =
= SUM(points for all 12 areas)
• minimum pigmentation score: 0
• maximum pigmentation score: 12
The other measures in the BPDAI are scaled from 0 to 1, so one option is to divide the final score by 12.
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