Table 1.

Selected Studies on Pubertal Events in Girls

AuthorsType of
Study
SubjectsAge Range
(yr)
RaceMean Age (yr)* of
Stage II Breast/
Pubic Hair
Mean Age (yr)
of Onset
of Menses
Year
Reynolds and Wines5,Longitudinal 498–18White10.8/11.012.91948
Nicholson and Hanley6*,Longitudinal70–978–18Not stated10.6/11.612.81953
Marshall and Tanner7Mixed 1928 upWhite11.2/11.713.51969
Longitudinal
Lee8,Longitudinal  188.6–17.8White11.2/11.913.31980
Harlan9,Cross-sectional268812–17Mixed12.8 White1980
12.5 Af.-Am.
Villarreal10,Cross-sectional 69910–17Mexican-American11.0/11.31989
Herman-Giddens and
MacMillan4,
Cross-sectional 5253–10Mixed1991
  • * Health and Nutrition Examination Survey.

  • Age at onset of characteristic.

  • US studies.