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Age at Menarche and Racial Comparisons in US Girls

✍ Scribed by Chumlea, William Cameron (author);Schubert, Christine M. (author);Roche, Alex F. (author);Kulin, Howard E. (author);Lee, Peter A. (author);Himes, John H. (author);Sun, Shumei S. (author)


Book ID
126917869
Publisher
American Academy of Pediatrics
Year
2003
Tongue
English
Weight
265 KB
Volume
111
Category
Article
ISSN
0031-4005

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The median menarcheal ages (MMAs) of Chinese girls in 1991 were calculated by using the status quo method and probit analysis in 64,322 schoolgirls 8-18 years of age. The sample was randomly selected from 29 provinces of China. The MMAs were 13.01 Β± 1.19 and 13.64 Β± 1.24 years for urban and rural gi