Trends in male:female ratio among newborn infants in 29 countries from five continents

Human Reproduction
F ParazziniS Franceschi

Abstract

We have analysed trends in male:female ratios among newborns between 1950 and 1990 in 29 countries from five continents. The numbers of liveborn males and females over the period 1950-1994 were derived from the World Health Organization (WHO) database. Countries for which reliable data were available included 20 major European countries (excluding the former Soviet Union, Albania and a few small countries), Canada, the USA, selected countries of Central and South America, Japan, Australia and New Zealand. From the original numbers of males and females, we computed the proportion of males among liveborns for each country and for selected broader areas within Europe. In most countries the proportion of male liveborns was constant during the study period. In particular, the proportion of male newborns in the European Union was 0.515 in 1950-1954, 0.514 in 1970-1974 and 0.514 in 1990-1994. In the USA, corresponding values were 0.513, 0.513 and 0.512. In Japan the ratios were 0.513 in 1950-1954, 0.516 and 1970-1974 and 0.514 in 1990-1994. Decreasing ratios were observed in some northern and eastern European countries plus Greece and Portugal and, particularly, in Mexico. In contrast, the proportion of male liveborns tended to increa...Continue Reading

Citations

Oct 23, 2012·International Journal of Public Health·Alexandre Dias Porto Chiavegatto Filho, Ichiro Kawachi
May 10, 2003·Fertility and Sterility·James L MillsSven Cnattingius
Jan 10, 2012·Journal of Biosocial Science·Dario Pavic
Jul 31, 2012·Asian Journal of Andrology·Michael L EisenbergLarry I Lipshultz
Sep 27, 2001·Archives of Environmental Health·M MartuzziR Bertollini
Aug 1, 2008·Human Reproduction·Dimosthenis MiliarasMaria Ketikidou
Apr 7, 2011·Human Reproduction·Misao FukudaClaus Yding Andersen
Jul 29, 2003·Journal of Epidemiology and Community Health·V GrechC Savona-Ventura
Aug 4, 2001·Environmental Health Perspectives·P H JongbloetP C Pasker-De Jong
Jun 26, 2007·Environmental Health Perspectives·Devra Lee DavisRikuo Doi
Aug 6, 2003·Archives of Environmental Health·Irene Figà-TalamancaLaura Ulizzi
Jun 16, 2010·Annals of Human Biology·Gibby KoshyBernard J Brabin
Aug 19, 2015·The Journal of Clinical Investigation·Rose G RadinEnrique F Schisterman
Feb 6, 2008·Lupus·L N MoorthyT J A Lehman
Dec 22, 1999·Human Reproduction·R JacobsenA Mouritsen
Dec 22, 1999·Human Reproduction·P Astolfi, L A Zonta
Mar 30, 2002·Cadernos de saúde pública·Mônica Rittler, Eduardo E Castilla
Apr 1, 2016·Environmental Pollution·Joanna JurewiczWojciech Hanke
Jan 13, 2018·American Journal of Men's Health·Michał RadwanJoanna Jurewicz
Oct 18, 2011·American Journal of Medical Genetics. Part C, Seminars in Medical Genetics·Eva Bermejo-SánchezMaría-Luisa Martínez-Frías
Apr 30, 2005·Human Reproduction·Tarmo TiidoAleksander Giwercman
Aug 12, 2005·European Journal of Public Health·Fabio ParazziniDonatella Caserta
Feb 17, 2007·Human Reproduction·William H James
Dec 3, 2016·American Journal of Human Biology : the Official Journal of the Human Biology Council·J GroegerD Malaspina
May 15, 2021·Nature Communications·Alexandra C Purdue-SmitheSunni L Mumford
Jun 30, 2021·Biodemography and Social Biology·Rosella Rettaroli, Francesco Scalone

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