The Bullous Pemphigoid Disease Activity Index (BPDAI) includes several measures of bullous pemphoid. One of these measures disease activity in the form of mucosal erosions and blisters. The authors are from multiple sites from around the world.
Patient selection: bullous pemphigoid
Sites:
(1) eyes
(2) nose
(3) buccal mucosa
(4) hard palate
(5) soft palate
(6) upper gingiva
(7) lower gingiva
(8) tongue
(9) floor of mouth
(10) labial mucosa
(11) posterior pharynx
(12) anogenital
Lesions
Points
none
0
1 lesion
1
2-3 lesions all <= 2 cm
2
> 3 lesions
5
> 2 lesions > 2 cm
5
entire area of site
10
total score =
= SUM(points for all 12 areas)
activity score =
= (total score) / 120
Interpretation:
• minimum activity score: 0
• maximum activity score: 1
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