Sergio Vañó-Galván1, David Saceda-Corralo1, Ulrike Blume-Peytavi2, Jose Cucchía3, Ncoza C Dlova4, Maria Fernanda Reis Gavazzoni Dias5, Ramon Grimalt6, Daniela Guzmán-Sánchez7, Matthew Harries8, Anthony Ho9, Susan Holmes10, Jorge Larrondo11, Anisa Mosam4, Rui Oliveira-Soares12,13, Giselle M Pinto14, Bianca M Piraccini15, Rodrigo Pirmez16, Daniel De la Rosa Carrillo17, Lidia Rudnicka18, Jerry Shapiro9, Rodney Sinclair19,20, Antonella Tosti21, Ralph M Trüeb22, Annika Vogt2, Mariya Miteva23. 1. Dermatology Department, Ramon y Cajal Hospital, University of Alcala, IRYCIS, Trichology Unit, Grupo Pedro Jaen Clinic, Madrid, Spain. 2. Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin, Berlin, Germany. 3. Private Trichology Practice, Santa Ana Medical Center, Bogotá, Colombia. 4. Department of Dermatology, Nelson R Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa. 5. Fluminense Federal University - UFF, Niterói, Brazil. 6. Dermatology Department, Universitat Internacional de Catalunya, Barcelona, Spain. 7. School of Medicine, Universidad de Guadalajara, Guadalajara, Mexico. 8. The Dermatology Centre, University of Manchester, Salford Royal NHS Foundation Trust, Salford, United Kingdom. 9. The Ronald O. Perelman Department of Dermatology, New York University School of Medicine, New York, New York, USA. 10. Alan Lyell Centre for Dermatology, Queen Elizabeth University Hospital, Glasgow, United Kingdom. 11. Department of Dermatology, Clínica Alemana de Santiago, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago, Chile. 12. Department of Dermatology, Hospital Cuf Descobertas, Lisbon, Portugal. 13. Department of Dermatology, Hospital Cuf Torres Vedras, Torres Vedras, Portugal. 14. Hair and Scalp Diseases, Outpatient Clinic, Division of Dermatology, Santa Casa de Misericórdia, Porto Alegre, Brazil. 15. Division of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy. 16. Department of Dermatology, Instituto de Dermatologia Professor Rubem David Azulay, Santa Casa da Misericórdia do Rio de Janeiro, Rio de Janeiro, Brazil. 17. Department of Dermatology, Oslo University Hospital, Oslo, Norway. 18. Department of Dermatology, Medical University of Warsaw, Warsaw, Poland. 19. Sinclair Dermatology, East Melbourne, Victoria, Australia. 20. Department of Medicine, University of Melbourne, Parkville, Victoria, Australia. 21. University of Miami, Miami, Florida, USA. 22. Center for Dermatology and Hair Diseases Professor Trüeb, Wallisellen, Switzerland. 23. Department of Dermatology and Cutaneous Surgery, University of Miami L. Miller School of Medicine, Miami, Florida, USA.
Abstract
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.
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.
Authors: Sergio Vañó-Galván; Ana M Molina-Ruiz; Cristina Serrano-Falcón; Salvador Arias-Santiago; Ana R Rodrigues-Barata; Gloria Garnacho-Saucedo; Antonio Martorell-Calatayud; Pablo Fernández-Crehuet; Ramón Grimalt; Beatriz Aranegui; Emiliano Grillo; Blanca Diaz-Ley; Rafael Salido; Sivia Pérez-Gala; Salvio Serrano; Jose Carlos Moreno; Pedro Jaén; Francisco M Camacho Journal: J Am Acad Dermatol Date: 2014-02-05 Impact factor: 11.527
Authors: María Librada Porriño-Bustamante; María Antonia Fernández-Pugnaire; Salvador Arias-Santiago Journal: J Clin Med Date: 2021-04-21 Impact factor: 4.241
Authors: María Librada Porriño-Bustamante; Fernando Javier Pinedo-Moraleda; Ángel Fernández-Flores; Trinidad Montero-Vílchez; María Antonia Fernández-Pugnaire; Salvador Arias-Santiago Journal: J Clin Med Date: 2022-07-15 Impact factor: 4.964