Secular trends in age at menarche in 20th century Mexico: Differences by ethnicity, area of residency, and socioeconomic status.
María Luisa MarvánRosa Lilia Castillo-LópezDiana Donají Del-Callejo-CanalMargarita Edith Canal-MartínezAlejandra Núñez-de la MoraPublished in: American journal of human biology : the official journal of the Human Biology Council (2020)
Mean AAM was associated with area of residence, ethnicity, and SES. Our findings indirectly suggest that advances in living conditions experienced in Mexico during the 20th century appear to have been insufficient to overcome the social and biological inequalities accumulated over centuries in some groups.
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