Bullous pemphigoid affects mainly elderly patients. It is often associated with neurologic disorders, which represent a major risk factor of the disease

The aim was to determine whether neurologic disorders, especially dementia, influences outcome and mortality of patients with bullous pemphigoid.

Inclusion Criteria:

• patients presenting bullous pemphigoid using the following criteria: clinical features typical of BP with presence of at least three out of four well-established criteria of Vaillant et al., subepidermal blister on skin biopsy and deposits of IgG and/or C3 in a linear pattern along the epidermal basement membrane zone by direct IF
• patients consulting at dermatology department of Reims Teaching Hospital (France) between 1997 and 2011

All patients presenting bullous pemphigoid and consulting at dermatology department of Reims Teaching Hospital (France) between 1997 and 2011.