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Created on : 11 Feb 2004
Modified on : 02 Dec 2007

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Bibliographical entry (without author) :

Narrowing of Sex Differences in Infant Mortality in Massachusetts. Journal of Perinatology 2004;24(2):94-99.

Author(s) :

Bhaumik U, Aitken I, Kawachi I.

Year of publication :

2004

URL(s) :

http://www.nature.com/cgi-taf/DynaPage.taf?file=/j…

Résumé (français)  :

Abstract (English)  :

OBJECTIVES: To examine whether the improved survival of preterm infants has influenced the known male excess in infant mortality.

STUDY DESIGN: We analyzed sex-specific infant mortality using linked birth and death certificates for all 619,811 live born infants in Massachusetts between 1989 and 1995.

RESULTS: Between 1989 and 1995 the male excess in infant mortality decreased by 50%, from 1.6/1000 to 0.8/1000 live births (LB). This narrowing resulted primarily from a more rapid decline in neonatal mortality among male infants (1.5/1000 LB) than among female infants (0.9/1000 LB). The largest declines in the male excess in neonatal mortality occurred among very premature infants (GA 30 weeks) and resulted primarily from a more rapid decrease in male deaths from respiratory distress syndrome.

CONCLUSIONS: The narrowing of the sex difference in mortality between 1989 and 1995 suggests that newer treatments like antenatal steroids, and surfactants may have differentially benefited male infants.

Sumário (português)  :

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Keywords :

➡ premature baby ; perinatal death rates

Author of this record :

Cécile Loup — 11 Feb 2004