PPT Slide

Initial signs of puberty (female)

African-American European-American

Previous 8 years 8 years

New 6 years 7 years

Kaplowitz et al: Pediatrics 1999

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The previous study was the basis for proposal from group of pediatric endocrinologists that earliest age considered normal for initial signs of puberty be lowered from.

“Previous”: same for both ethnicities.

“New”: Can be as low as 6y for African-American and lowered to 7y for European-Amercian.

That is, you would not suspect precocious puberty unless young girl less was than 6y (African-American), and 7y (European-American).