Age at Menarche: 50-Year Socioeconomic Trends Among US-Born Black and White Women.

Photo of Nancy KriegerPop Center faculty members Nancy Krieger and Jason Beckfield have published a study analyzing 50 years of data on the age at which US-born Black and White women begin menstruation. Their works shows that trends in age at menarche vary by socioeconomic position (SEP and race/ethnicity) in ways that pose challenges to several leading clinical, public health, and social explanations for timing of menarche.