Supplementary Material for: Polymorphic CAG Repeat Numbers in the Androgen Receptor Gene of Female Pattern Hair Loss in a Han Chinese Population

The study, conducted 7 years ago, investigated the association of CAG repeat numbers in the androgen receptor (AR) gene with female pattern hair loss (FPHL) in a Han Chinese population. The study involved 200 Han Chinese patients with FPHL and 200 healthy controls. The results showed that the CAG biallelic mean length was 23.73 ± 2.04 repeats in FPHL patients and 23.90 ± 2.13 repeats in healthy controls, with no significant difference between the two groups. The study concluded that the polymorphism of CAG repeat numbers of the AR gene may not be the genetic marker of FPHL in a Chinese population.