Secular trends in sex ratios at birth in North America and Europe over the second half of the 20th century

Context: A previous study showed that significantly more boys were born in southern latitudes in Europe than in northern latitudes and the converse pattern was observed in North America. Objective: This study analyses secular trends in gender ratios for live births over the second half of the 20th c...

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Bibliographic Details
Published in:	Journal of epidemiology and community health (1979) Vol. 57; no. 8; pp. 612 - 615
Main Authors:	Grech, V, Vassallo-Agius, P, Savona-Ventura, C
Format:	Journal Article
Language:	English
Published:	London BMJ Publishing Group Ltd 01-08-2003 BMJ Publishing Group BMJ BMJ Publishing Group LTD BMJ Group
Subjects:	20th century Analysis. Health state Biological and medical sciences birth rate Birth Rate - trends Births Childbirth climate Community health Continents Datasets Epidemiology Europe - epidemiology Female Females General aspects Humans Infant, Newborn Infants Latitude Live births Male Male animals Males Medical sciences North America - epidemiology Public health. Hygiene Public health. Hygiene-occupational medicine Ratios Regression analysis Reproduction Research Report Secular variations Sex Distribution Sex Ratio Statistics Surveys Trends Vivipary North America Europe America Romania United Kingdom > UK United States > US Spain Greece Canada Netherlands Norway Ireland Finland Denmark Poland Mexico France Germany Sex ratio Birth
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