TY - JOUR
T1 - Frequency of the Types of Alopecia at Twenty-Two Specialist Hair Clinics
T2 - A Multicenter Study
AU - Vañó-Galván, Sergio
AU - Saceda-Corralo, David
AU - Blume-Peytavi, Ulrike
AU - Cucchía, Jose
AU - Dlova, Ncoza C.
AU - Gavazzoni Dias, Maria Fernanda Reis
AU - Grimalt, Ramon
AU - Guzmán-Sánchez, Daniela
AU - Harries, Matthew
AU - Ho, Anthony
AU - Holmes, Susan
AU - Larrondo, Jorge
AU - Mosam, Anisa
AU - Oliveira-Soares, Rui
AU - Pinto, Giselle M.
AU - Piraccini, Bianca M.
AU - Pirmez, Rodrigo
AU - De La Rosa Carrillo, Daniel
AU - Rudnicka, Lidia
AU - Shapiro, Jerry
AU - Sinclair, Rodney
AU - Tosti, Antonella
AU - Trüeb, Ralph M.
AU - Vogt, Annika
AU - Miteva, Mariya
N1 - Publisher Copyright:
© 2019 S. Karger AG, Basel. All rights reserved.
PY - 2019/8/1
Y1 - 2019/8/1
N2 - Background: The frequency of different types of alopecia is not clearly reported in recent studies. Objective: To analyze the frequency of the types of alopecia in patients consulting at specialist hair clinics (SHC) and to assess for global variations. Methods: Multicenter retrospective study including data from patients evaluated at referral SHC in Europe, America, Africa and Australia. Results: A total of 2,835 patients (72.7% females and 27.3% males) with 3,133 diagnoses of alopecia were included (73% were non-cicatricial and 27% were cicatricial alopecias). In all, 57 different types of alopecia were characterized. The most frequent type was androgenetic alopecia (AGA) (37.7%), followed by alopecia areata (AA) (18.2%), telogen effluvium (TE) (11.3%), frontal fibrosing alopecia (FFA) (10.8%), lichen planopilaris (LPP) (7.6%), folliculitis decalvans (FD) (2.8%), discoid lupus (1.9%) and fibrosing alopecia in a pattern distribution (FAPD) (1.8%). There was a male predominance in patients with acne keloidalis nuchae, dissecting cellulitis and FD, and female predominance in traction alopecia, central centrifugal cicatricial alopecia, FFA, TE, FAPD and LPP. Conclusion: AGA followed by AA and TE were the most frequent cause of non-cicatricial alopecia, while FFA was the most frequent cause of cicatricial alopecia in all studied geographical areas.
AB - Background: The frequency of different types of alopecia is not clearly reported in recent studies. Objective: To analyze the frequency of the types of alopecia in patients consulting at specialist hair clinics (SHC) and to assess for global variations. Methods: Multicenter retrospective study including data from patients evaluated at referral SHC in Europe, America, Africa and Australia. Results: A total of 2,835 patients (72.7% females and 27.3% males) with 3,133 diagnoses of alopecia were included (73% were non-cicatricial and 27% were cicatricial alopecias). In all, 57 different types of alopecia were characterized. The most frequent type was androgenetic alopecia (AGA) (37.7%), followed by alopecia areata (AA) (18.2%), telogen effluvium (TE) (11.3%), frontal fibrosing alopecia (FFA) (10.8%), lichen planopilaris (LPP) (7.6%), folliculitis decalvans (FD) (2.8%), discoid lupus (1.9%) and fibrosing alopecia in a pattern distribution (FAPD) (1.8%). There was a male predominance in patients with acne keloidalis nuchae, dissecting cellulitis and FD, and female predominance in traction alopecia, central centrifugal cicatricial alopecia, FFA, TE, FAPD and LPP. Conclusion: AGA followed by AA and TE were the most frequent cause of non-cicatricial alopecia, while FFA was the most frequent cause of cicatricial alopecia in all studied geographical areas.
KW - alopecia
KW - alopecia areata
KW - androgenetic alopecia
KW - epidemiology
KW - folliculitis decalvans
KW - frontal fibrosing alopecia
KW - hair diseases
KW - lichen planopilaris
KW - telogen effluvium
UR - http://www.scopus.com/inward/record.url?scp=85064000260&partnerID=8YFLogxK
U2 - 10.1159/000496708
DO - 10.1159/000496708
M3 - Article
AN - SCOPUS:85064000260
SN - 2296-9195
VL - 5
SP - 309
EP - 315
JO - Skin Appendage Disorders
JF - Skin Appendage Disorders
IS - 5
ER -