Trend towards earlier menarche in London, Olso, Copenhagen, the Netherlands and Hungary

Tanner, J.M.; Tanner, J.M

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Trend towards earlier menarche in London, Olso, Copenhagen, the Netherlands and Hungary

Tanner, J.M.

Nature 243(5402): 95-96

1973

ISSN/ISBN: 0028-0836

PMID: 4706636

Document Number: 65528

Brundtland and Walløe1 have reported that the trend toward earlier maturation in children, as evidenced by age at menarche, has stopped, at least for the present. Using probit estimates in a status quo inquiry they gave the mean ages as 13.27 yr in 1952 and 13.24 in 1970. Both results were based on large samples of Oslo schoolgirls.