Systemic Comorbidities in Central Centrifugal Cicatricial Alopecia: A Systematic Review and Meta-analysis.

Twenty three studies, comprising 9,103 patients with cicatricial alopecia, were eligible.

Hypertension (51.9%, 95% CI 33.8-69.6), dyslipidemia (58.4%, 95% CI 29.0 82.8), obesity (37.1%, 95% CI 10.8-74.2) and uterine leiomyomas (28.0%, 95% CI 8.0-64.0) were frequently reported, with substantial heterogeneity across studies.

Most included studies were retrospective and predominantly U.

S.-based, contributing to methodological heterogeneity.