Childhood body size and pubertal timing in relation to adult mammographic density phenotype.

Likewise, the association with the time from thelarche to establishment of regular periods remained significant after controlling for age at thelarche ( p trend = 0.035) or became borderline significant after controlling for age at the establishment of regular cycles ( p trend = 0.060) or for total breast area ( p trend = 0.048) (not shown).

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