Early-onset androgenetic alopecia in China: a descriptive study of a large outpatient cohort

Objective To describe the clinical features of early-onset androgenetic alopecia (AGA) in a large cohort of Chinese patients. Methods This descriptive study recruited consecutive patients seeking medical treatment for AGA between 1 January 2013 and 30 November 2018. Patients were included in the stu...

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Bibliographic Details
Published in:Journal of international medical research 2020-03, Vol.48 (3), p.300060519897190-300060519897190
Main Authors: Ding, Qi, Xu, Yu-Xuan, Sun, Wei-Ling, Liu, Jing-Jing, Deng, Yu-Yu, Wu, Qiao-Fang, Cao, Chun-Yu, Zhou, Lan-Bo, Lu, Yan, Fan, Wei-Xin
Format: Article
Language:English
Subjects:
Adult
Age of Onset
Alopecia
Alopecia - diagnosis
Alopecia - epidemiology
Alopecia - etiology
Ambulatory Care - statistics & numerical data
Baldness
China - epidemiology
Female
Hair loss
Humans
Male
Medical History Taking
Outpatients
Overweight
Population Surveillance
Retrospective Clinical Research Report
Risk Factors
Young Adult
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Summary:Objective To describe the clinical features of early-onset androgenetic alopecia (AGA) in a large cohort of Chinese patients. Methods This descriptive study recruited consecutive patients seeking medical treatment for AGA between 1 January 2013 and 30 November 2018. Patients were included in the study if they reported being ≤35 years old at AGA onset and if their pattern of hair loss was documented with photographs. The age of onset, sex, body mass index (BMI), BAsic and SPecific classification of hair loss and family history of alopecia were collected in an electronic database. Results A total of 3897 patients with early-onset AGA were recruited to the study. The majority of patients (70.6%; 2751 of 3897) were 21–30 years old and male (72.7%; 2834 of 3897). No association was found between high BMI (≥25 kg/m2) and early-onset AGA. There were significantly more overweight male AGA patients than overweight female patients (86.8% [632 of 728] versus 13.2% [96 of 728], respectively). The overall prevalence of familial AGA was 72.8% (2837 of 3897) and the condition was inherited more often from the father (52.8%; 1498 of 2837) than from the mother (24.3%; 688 of 2837). Conclusions Early-onset AGA primarily affects male patients between 21–30 years of age. Males with early-onset AGA are likely to have inherited AGA from their fathers.
ISSN:0300-0605
1473-2300
DOI:10.1177/0300060519897190