Ethnic differences in the impact of male fetal gender on the risk of spontaneous preterm birth

Myrthe J. C. S. Peelen* (Corresponding Author), Brenda M. Kazemier, Anita C. J. Ravelli, Christianne J. M. de Groot, Joris A. M. van der Post, Ben W. J. Mol, Marjolein Kok, Petra J. Hajenius

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objective
To study the impact of fetal gender on the risk of spontaneous preterm birth in various ethnicities.

Study design
National cohort study in which all singleton live births from 25+0 weeks onwards without congenital anomalies were included of African, Asian, and Mediterranean women (1999–2010). Our primary outcome measure was preterm birth before 37 weeks. Per ethnic group, male and female neonates were compared.

Result
In each ethnic group, male fetuses were at increased risk of preterm birth (adjusted odds ratio (aOR) 1.63 for African, aOR 1.71 for Asian, and aOR 1.84 for Mediterranean males). The population-attributable risk of male gender on spontaneous preterm birth is lower in African women (3.9%) than in Asian (10.3%) and Mediterranean women (9.0%).

Conclusion
Male fetal gender is associated with spontaneous preterm birth in African, Asian, and Mediterranean women, but the total impact of ethnicity on spontaneous preterm birth rate is different.
Original languageEnglish
Pages (from-to)2165-2172
Number of pages8
JournalJournal of Perinatology
Volume41
Early online date9 Mar 2021
DOIs
Publication statusPublished - Sep 2021

Keywords

  • Epidemiology
  • risk factors

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