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October 1990

Androgenetic Alopecia

Arch Dermatol. 1990;126(10):1371-1372. doi:10.1001/archderm.1990.01670340123030

To the Editor.—  Hair loss in women, as in men, is a relatively common condition. Androgenetic alopecia in the female will be evident in about 25% of women by the age of 40 years, and increase to about 50% by the age of 50 years. In reports on the distribution of the thinning of hair in women, studies have been done on women in whom hair loss was the presenting symptom. Venning and Dawber1 described patterned androgenetic alopecia as a relatively frequent finding in "normal" women based on clinical examination. There are no available data that quantify hair counts in the frontoparietal area of the scalp of "normal" women.A multicenter clinical trial was designed and conducted by The Upjohn Company (Kalamazoo, Mich) to quantify hair density in the frontoparietal area of the scalp of women who were not considered to have androgenetic alopecia by their own observation, and by

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