The Prevalence of Clinically Undiagnosed Depression in Patients With Autoimmune Bullous Diseases Seen at Inkosi Albert Luthuli Central Hospital, Durban, South Africa.

Background Chronic autoimmune bullous diseases have been associated with major depression in previous studies. This has been attributed to inflammatory cytokines, chronic pain, and the chronicity and debilitating nature of the disease. As no similar studies have been conducted in our setting, we aimed to determine the prevalence and severity of clinically undiagnosed depression in patients with autoimmune bullous diseases. Methodology We performed a cross-sectional study among outpatients managed in a bullous disease clinic at Inkosi Albert Luthuli Central Hospital, a quaternary provincial hospital in Durban, South Africa. Results A total of 44 participants were recruited and included in this study. The majority of the participants were females (29, 65.9%). The most common autoimmune bullous diseases were pemphigus vulgaris (19, 43.2%), bullous pemphigoid (18, 40.9%), and pemphigus foliaceus (5, 11.4%). The overall prevalence of at least mild and at least moderate depression in patients with autoimmune bullous diseases in our clinic was 52.3% and 20.5%, respectively. Pemphigus vulgaris showed the highest median Patient Health Questionnaire-9 score compared to other bullous dermatoses. Statistically significant differences were observed between females and males for the duration with the bullous disease (p = 0.014) and between intraepidermal and subepidermal disease for both the mean age (p = 0.038) and age at onset (p = 0.015). Conclusions Clinically undiagnosed depression is common in patients with autoimmune bullous disease. Its frequency and severity may differ depending on the underlying autoimmune bullous disease and possibly other factors. Dermatologists should always be alert to this fact and prompt psychiatric consultation as required to comprehensively manage these patients.

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The authors have declared that no competing interests exist.