A Century of Change: Unraveling the Impact of Socioeconomic/Historical Milestones on Age at Menarche and Other Female Reproductive Factors in Japan.

J Epidemiol · 2024 · PMC11230879 · PMID 38191181

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an increasing trendno p-value reported

After 20 years of stable trend, four years of an increasing trend, in parallel with the baby boom after World War II.

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