Patients of skin of color (SOC) with bullous pemphigoid presented significantly more often with dyspigmentation than did White patients in a retrospective observational study of patients diagnosed with BP at New York University Langone Health and Bellevue Hospital, also in New York.
“Dyspigmentation in the skin-of-color patient population is important to recognize not only for an objective evaluation of the disease process, but also from a quality of life perspective ... to ensure there is timely diagnosis and initiation of treatment in the skin-of-color population,” said medical student Payal Shah, BS, of New York University, in presenting the findings at the annual Skin of Color Society symposium.
Ms. Shah and coresearchers identified 94 cases of BP through retrospective view of electronic health records – 59 in White patients and 35 in SOC patients. The physical examination features most commonly found at initial presentation were bullae or vesicles in both White patients (64.4% ) and SOC patients (80%). Erosions or ulcers were also commonly found in both groups (42.4% of White patients and 60% of SOC patients).
Erythema was more commonly found in White patients at initial presentation: 35.6% vs. 14.3% of SOC patients (P = .032). Dyspigmentation, defined as areas of hyper- or hypopigmentation, was more commonly found in SOC patients: 54.3% versus 10.2% in White patients (P < .001). The difference in erythema of inflammatory bullae in BP may stem from the fact that erythema is more difficult to discern in patients with darker skin types, Ms. Shah said.
SOC patients also were significantly younger at the time of initial presentation; their mean age was 63 years, compared with 77 years in the White population (P < .001).
The time to diagnosis, defined as the time from initial symptoms to dermatologic diagnosis, was greater for the SOC population –7.6 months vs. 6.2 months for white patients –though the difference was not statistically significant, they said in the abstract .
Dyspigmentation has been shown to be among the top dermatologic concerns of Black patients and has important quality of life implications. “Early diagnosis to prevent difficult-to-treat dyspigmentation is therefore of utmost importance,” they said in the abstract.
Prior research has demonstrated that non-White populations are at greater risk for hospitalization secondary to BP and have a greater risk of disease mortality, Ms. Shah noted in her presentation.