Age at menarche from a Biscayan coastal population (Basque Country).
Data on menarcheal age were collected by the status quo method on a sample of 894 schoolgirls (9-19 years of age), from the Biscay province coast (Basque Country, Spain). Logit analysis provided a mean age at menarche of 12.75 +/- 0.04 years with a standard deviation of 0.93. The result was compared with data from another previous Basque study.
Rebato
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E
Universidad del Pais Vasco, Bilbao, Spain.
Rosique
J
J
Gonzalez Apraiz
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A
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D006801:Humans; D008572:Menarche / Q000502:physiology*; D011788:Quality of Life; D012959:Socioeconomic Factors; D013030:Spain